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rpm-build	01e673	`<html>`
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rpm-build	01e673	`----- JS Window Closer -->`
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rpm-build	01e673
rpm-build	01e673	`This work is licensed under a Creative Commons Attribution 2.5 License.`
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rpm-build	01e673
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rpm-build	01e673
rpm-build	01e673	`xmlns:dc="http://purl.org/dc/elements/1.1/"`
rpm-build	01e673	`xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">`
rpm-build	01e673	`<Work rdf:about="">`
rpm-build	01e673	`<dc:title>leptonica</dc:title>`
rpm-build	01e673	`<dc:date>2001</dc:date>`
rpm-build	01e673	`<dc:description>An open source C library for efficient image processing and image analysis operations</dc:description>`
rpm-build	01e673	`<dc:creator><Agent>`
rpm-build	01e673	`<dc:title>Dan S. Bloomberg</dc:title>`
rpm-build	01e673	`</Agent></dc:creator>`
rpm-build	01e673	`<dc:rights><Agent>`
rpm-build	01e673	`<dc:title>Dan S. Bloomberg</dc:title>`
rpm-build	01e673	`</Agent></dc:rights>`
rpm-build	01e673	`<dc:type rdf:resource="http://purl.org/dc/dcmitype/Text" />`
rpm-build	01e673	`<dc:source rdf:resource="www.leptonica.com"/>`
rpm-build	01e673	`<license rdf:resource="http://creativecommons.org/licenses/by/2.5/" />`
rpm-build	01e673	`</Work>`
rpm-build	01e673
rpm-build	01e673	`<License rdf:about="http://creativecommons.org/licenses/by/2.5/">`
rpm-build	01e673	`<permits rdf:resource="http://web.resource.org/cc/Reproduction" />`
rpm-build	01e673	`<permits rdf:resource="http://web.resource.org/cc/Distribution" />`
rpm-build	01e673	`<requires rdf:resource="http://web.resource.org/cc/Notice" />`
rpm-build	01e673	`<requires rdf:resource="http://web.resource.org/cc/Attribution" />`
rpm-build	01e673	`<permits rdf:resource="http://web.resource.org/cc/DerivativeWorks" />`
rpm-build	01e673	`</License>`
rpm-build	01e673
rpm-build	01e673	`</rdf:RDF>`
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rpm-build	01e673	`-->`
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673	`/====================================================================`
rpm-build	01e673	`- Copyright (C) 2001 Leptonica. All rights reserved.`
rpm-build	01e673	`-`
rpm-build	01e673	`- Redistribution and use in source and binary forms, with or without`
rpm-build	01e673	`- modification, are permitted provided that the following conditions`
rpm-build	01e673	`- are met:`
rpm-build	01e673	`- 1. Redistributions of source code must retain the above copyright`
rpm-build	01e673	`- notice, this list of conditions and the following disclaimer.`
rpm-build	01e673	`- 2. Redistributions in binary form must reproduce the above`
rpm-build	01e673	`- copyright notice, this list of conditions and the following`
rpm-build	01e673	`- disclaimer in the documentation and/or other materials`
rpm-build	01e673	`- provided with the distribution.`
rpm-build	01e673	`-`
rpm-build	01e673	`- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS`
rpm-build	01e673	- ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
rpm-build	01e673	`- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR`
rpm-build	01e673	`- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY`
rpm-build	01e673	`- CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,`
rpm-build	01e673	`- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,`
rpm-build	01e673	`- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR`
rpm-build	01e673	`- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY`
rpm-build	01e673	`- OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING`
rpm-build	01e673	`- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS`
rpm-build	01e673	`- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.`
rpm-build	01e673	`====================================================================/`
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673	`Version Notes for Leptonica`
rpm-build	01e673	`19 Apr 2018`
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673	`Note: The following are highlights of the changes in each version.`
rpm-build	01e673	`They are not a complete listing of the modifications.`
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673	`1.76.0 1 May 18`
rpm-build	01e673	`Modify infrastructure to fix outstanding security issues. By default,`
rpm-build	01e673	`you can no longer create temp directories and temp files whose`
rpm-build	01e673	`names are known to the compiler. Also, prevent "system" calls,`
rpm-build	01e673	`which were used for image display and gnuplot.`
rpm-build	01e673	`Replaced remaining sprintf() with snprintf() in prog tests.`
rpm-build	01e673	`Added non-transcoding functions for generating pdf from jpeg pixacomp`
rpm-build	01e673	`Add control of jpeg quality from pixWriteMem() and pixWriteStream()`
rpm-build	01e673	`Fixed getFilenamesInDirectory() to properly identify directories`
rpm-build	01e673	`Prevent size overflow in calloc for kernel; cleaned it up fpix and dpix`
rpm-build	01e673	`bmp reading now accepts negative height`
rpm-build	01e673	`Simplified splitimage2pdf; it no longer uses ps2pdf`
rpm-build	01e673	`Remove name-mangling WRITE_AS_NAMED compile option.`
rpm-build	01e673	`Removed 2 deprecated write functions.`
rpm-build	01e673	`Added these regression tests:`
rpm-build	01e673	`locminmax_reg, speckle_reg, watershed_reg,`
rpm-build	01e673
rpm-build	01e673	`1.75.3 15 Feb 18`
rpm-build	01e673	`Fixed some coverity scan issues.`
rpm-build	01e673	`Autotools fix to check for png if enabling gnuplot (James Le Cuirot).`
rpm-build	01e673
rpm-build	01e673	`1.75.2 11 Feb 18`
rpm-build	01e673	`Converted several progs to standard regression tests.`
rpm-build	01e673	`Added these tests to the alltests_reg suite:`
rpm-build	01e673	`adaptnorm_reg, binmorph1_reg, binmorph3_reg, equal_reg,`
rpm-build	01e673	`extrema_reg, grayfill_reg, falsecolor_reg, grayquant_reg.`
rpm-build	01e673	`Autotools fix for restricting giflib to 5.1+, and allowing`
rpm-build	01e673	`openjpeg 2.3 (James Le Cuirot).`
rpm-build	01e673
rpm-build	01e673	`1.75.1 31 Jan 18`
rpm-build	01e673	`Simpler and more accurate function for finding word masks from`
rpm-build	01e673	`text image; better debugging and more thorough testing.`
rpm-build	01e673	`Added to regression test set: prog/italic_reg`
rpm-build	01e673	`Fix for potential injection attack using gplot rootdir.`
rpm-build	01e673	`Bug fix for bmp reading to set opacity.`
rpm-build	01e673
rpm-build	01e673	`1.75.0 24 Jan 18`
rpm-build	01e673	`This is a new version, for major Ubuntu release 18.04.`
rpm-build	01e673	`$TMPDIR path rewriting turned off on Unix; only used for Windows.`
rpm-build	01e673	`Added pix conversion to depth 2 and 4. We now have general`
rpm-build	01e673	`converters to 1, 2, 4, 8, 16 and 32 bpp.`
rpm-build	01e673	`Modified giflib to use read/write from/to memory; no temp files;`
rpm-build	01e673	`no longer support versions before 5.1.`
rpm-build	01e673	`Move most low-level code from separate files to their callers;`
rpm-build	01e673	`about 30 of them became static.`
rpm-build	01e673	`Improved table detection on scanned page images (tests: pageseg_reg.c)`
rpm-build	01e673	`Added support for write/compare regression tests for files.`
rpm-build	01e673	`Modified printimage for more flexibility.`
rpm-build	01e673	`Enable lookup by key on comma-separated key/value text file.`
rpm-build	01e673	`Update README.html for building with Visual Studio.`
rpm-build	01e673	`Improved functions for getting pixel averages in RGB images`
rpm-build	01e673	`Simplified and speedup of unsharp masking.`
rpm-build	01e673	`New function for detecting and correcting text orientation.`
rpm-build	01e673	`Remove slow sharpening operation when not appropriate during scaling.`
rpm-build	01e673	`Better handling of gplots with 0 or 1 data point.`
rpm-build	01e673	`Coverity scan fixes.`
rpm-build	01e673	`Modified jpeg2000 header to use openjpeg 2.3.`
rpm-build	01e673	`Improved depth accessors for pixa and pixaa; added size accessors`
rpm-build	01e673	`for pixa and pixaa.`
rpm-build	01e673	`Bug fix in webp interface on read error.`
rpm-build	01e673	`New function that finds the closest boxes in a boxa to any particular`
rpm-build	01e673	`box, in each of 4 directions.`
rpm-build	01e673	`New regression tests in automated sequence: blend5_reg, quadtree_reg,`
rpm-build	01e673	`wordboxes_reg.`
rpm-build	01e673	`New program: textorient`
rpm-build	01e673	`Removed programs: snapcolortest`
rpm-build	01e673
rpm-build	01e673	`1.74.4 11 Jun 17`
rpm-build	01e673	`Converted two progs to reg tests`
rpm-build	01e673	`New version because 1.74.3 had some spurious files (xtractprotos,`
rpm-build	01e673	`endianness.h)`
rpm-build	01e673
rpm-build	01e673	`1.74.3 9 Jun 17`
rpm-build	01e673	`Coverity scan fixes.`
rpm-build	01e673	`Several fixes for running on Windows, including subtle one with tiff`
rpm-build	01e673	`encoding depending on pad bits.`
rpm-build	01e673	`Utility and test if a page image likely has a table.`
rpm-build	01e673	`Remove use of pixCreateTemplateNoInit() where it may cause problems.`
rpm-build	01e673	`Make release 'configure-make ready'`
rpm-build	01e673
rpm-build	01e673	`1.74.2 19 May 17`
rpm-build	01e673	`Many simplifications and improvements to recognizer.`
rpm-build	01e673	`Cleanup of doxygen comments`
rpm-build	01e673	`Encoded pdf title in escape 4-byte hex (for safety)`
rpm-build	01e673	`Fixed several hundered coverity scan possible leaks`
rpm-build	01e673	`Added about 20 regression tests to the automated set.`
rpm-build	01e673	`Improved vertical alignment of dewarp.`
rpm-build	01e673	`Implemented preliminary method for correcting dewarp foreshortening`
rpm-build	01e673	`due to page curvature.`
rpm-build	01e673	`Improved multipage tiff reading and writing.`
rpm-build	01e673	`Added a new version of textline finding.`
rpm-build	01e673	`Fixed bug in fast 2D sharpening code (used in some scaling ops)`
rpm-build	01e673	`BMP i/o rewritten to implement memory version directly.`
rpm-build	01e673	`PNG i/o functions added for encoding and decoding directly to memory.`
rpm-build	01e673	`Method for finding light color regions on scanned page images.`
rpm-build	01e673
rpm-build	01e673	`1.74.1 3 Jan 17`
rpm-build	01e673	`Configuration changes to support the patch number in the`
rpm-build	01e673	`version (major.minor.patch).`
rpm-build	01e673	`Removed all remaining pixDisplayWrite() calls in prog/.`
rpm-build	01e673	`Cleaned up and/or promoted about 15 programs to full regression`
rpm-build	01e673	`tests. There are now 95 tests in the regression set.`
rpm-build	01e673	`Over half the initial coverity scan warnings have been removed.`
rpm-build	01e673
rpm-build	01e673	`1.74.0 10 Dec 16`
rpm-build	01e673	`Leptonica development was moved to github. The master is at:`
rpm-build	01e673	`github.com/danbloomberg/leptonica`
rpm-build	01e673	`Egor Pugin is the maintainer of the site.`
rpm-build	01e673	`A very large number of changes have been made. Some of them follow;`
rpm-build	01e673	`details can be found in the git commit messages.`
rpm-build	01e673	`Static makefiles modified to work with gnu9 and c9.`
rpm-build	01e673	`Modify SET macros to work on windows.`
rpm-build	01e673	`New modes for RGB --> gray conversion.`
rpm-build	01e673	`New functions added for displaying a pix from a pixa.`
rpm-build	01e673	`Split out sort/hash/set/map functions for dna, sarray and pta.`
rpm-build	01e673	`More robust horizontal deskew on multi-column page images.`
rpm-build	01e673	`Improve webpio_reg test.`
rpm-build	01e673	`Remove X11 display for gplot; it is no longer supported.`
rpm-build	01e673	`Remove most sleep calls, which were put in for gplot; no longer needed.`
rpm-build	01e673	`Removed use of gthumb in library.`
rpm-build	01e673	`Removed use of pixDisplayWrite() in the library; still in some progs.`
rpm-build	01e673	`Improved test for endianness in makefile.static; no longer requires`
rpm-build	01e673	`any local files or building and running a program.`
rpm-build	01e673	`Modified all files for doxygen output (spearheaded by Jurgen Buchmuller)`
rpm-build	01e673	`Improved plotting of the boxes in a boxa.`
rpm-build	01e673	`Replaced the slow point hash function with a simple fast one.`
rpm-build	01e673	`Added pam (4 component) format writing to pnmio.c (Jurgen Buchmuller)`
rpm-build	01e673	`Improved rendering of pixa in side/by/sides.`
rpm-build	01e673	`Better utilities for pixa and pixacomp.`
rpm-build	01e673	`Add read/write serialization functions from/to memory for all`
rpm-build	01e673	`the major data structures that do not already have them.`
rpm-build	01e673	`More serialized boot recognizers stored as self-generating code.`
rpm-build	01e673	`Cleaned up generating an adapted recognizer from the boot recognizer.`
rpm-build	01e673	`Simplified temp file naming; removed most instances of named`
rpm-build	01e673	`temp files from non-debug code; use tmpfile() and a wrapper`
rpm-build	01e673	`l_makeTempFilename().`
rpm-build	01e673	`Simplify and streamline multipage tiff reading (Jeff Breidenbach).`
rpm-build	01e673	`Improvement of Otsu thresholding.`
rpm-build	01e673	`Recognize outstanding contributors to leptonica over the years.`
rpm-build	01e673	`New gif mem read/write interface that avoids writing a temp file,`
rpm-build	01e673	`contributed by Tobias Peirick.`
rpm-build	01e673	`Use double arrays (dna) instead of float (numa) for set ops.`
rpm-build	01e673	`Enrolled in coverity scan to find potential bugs (Stefan Weil`
rpm-build	01e673	`managed it). Fixed about 200 of them, mostly potential memory`
rpm-build	01e673	`leaks from early function exit.`
rpm-build	01e673	`Cleanup of gray quantization functions and tests.`
rpm-build	01e673	`Refactored connectivity-conserving operations, to make them more useful.`
rpm-build	01e673	`Provided methods for measuring and regularizing the width of strokes.`
rpm-build	01e673	`Removed viewfiles.c from library; code is now in prog htmlviewer.c.`
rpm-build	01e673	`Better debugging in page segmentation (pageseg.c)`
rpm-build	01e673	`Deprecated the pixDisplayWrite*() debugging methods.`
rpm-build	01e673	`Added about 15 regression tests to the framework in alltests_reg.c`
rpm-build	01e673	`Final mods for compatibility with tesseract 4.00.`
rpm-build	01e673
rpm-build	01e673	`1.73 25 Jan 16`
rpm-build	01e673	`All lept_* functions have been rewritten to avoid path rewrites for`
rpm-build	01e673	`output to temp files, which were introduced in 1.72.`
rpm-build	01e673	`Now, (1) files are written to the directory specified and (2) we`
rpm-build	01e673	`are careful to write to subdirectories of /tmp/lept/ for all test`
rpm-build	01e673	`programs, starting with the reg tests and prog/dewarp* and`
rpm-build	01e673	`prog/recog*. This also required re-writing stringcode.c and`
rpm-build	01e673	`stringtemplate1.txt to write temp files to subdirectories.`
rpm-build	01e673	`Goal is to write to the specified path while not spamming the`
rpm-build	01e673	`/tmp and /tmp/lept directories. This is particularly important`
rpm-build	01e673	`on windows because files in the <TEMP> directory are not cleared`
rpm-build	01e673	`on reboot.`
rpm-build	01e673	`Naming changes (to avoid collisions):`
rpm-build	01e673	`#defines MALLOC --> LEPT_MALLOC, CALLOC --> LEPT_CALLOC, etc.`
rpm-build	01e673	`ByteBuffer --> L_ByteBuffer`
rpm-build	01e673	`Added grayscale histogram functions that can be used to compare images.`
rpm-build	01e673	`Added functions to determine if an image region has horizontal`
rpm-build	01e673	`text lines.`
rpm-build	01e673	`Added functions to compare photo regions of images to determine`
rpm-build	01e673	`if they're essentially the same.`
rpm-build	01e673	`Added red-black tree utility functions to implement maps and sets.`
rpm-build	01e673	`The keys for maps and sets can be 64-bit entities (signed and`
rpm-build	01e673	`unsigned integers and doubles).`
rpm-build	01e673	`Implemented hashsets and hashmaps, using 64 bit keys.`
rpm-build	01e673	`Replaced the numaHash by l_dnaHash; removed numa2d`
rpm-build	01e673	`Improved security of tiff and gif reading, to prevent memory corruption`
rpm-build	01e673	`when reading bad data.`
rpm-build	01e673	`Removed src files: bootnumgen.c`
rpm-build	01e673	`Added src files: rbtree.c, rbtree.h, map.c, bootnumgen1.c, bootnumgen2.c`
rpm-build	01e673	`Added prog files: rbtreetest.c, maptest.c, settest.c, hashtest.c,`
rpm-build	01e673	`recog_bootnum.c, percolatetest.c`
rpm-build	01e673	`Added files for building using cmake (Egor Pugin)`
rpm-build	01e673
rpm-build	01e673	`1.72 5 Apr 15`
rpm-build	01e673	`Better handling of 1 bpp colormap read/write with png so that`
rpm-build	01e673	`they are losseless. The colormap is always removed on read and`
rpm-build	01e673	`the conversion is to the simplest non-cmapped pix that can fully`
rpm-build	01e673	`represent the input -- both with and without alpha.`
rpm-build	01e673	`Fixed overflow bug in pixCorrelationBinary().`
rpm-build	01e673	`Fixed orientation flags and handling of 16 bit RGB in tiff.`
rpm-build	01e673	`Also new wrappers to TIFFClientOpen(), so we no longer go through`
rpm-build	01e673	`the file descriptor for memory operations.`
rpm-build	01e673	`Improvements in the dewarp functions.`
rpm-build	01e673	`New box sequence smoothings.`
rpm-build	01e673	`New antialiased painting through mask; previously it was only`
rpm-build	01e673	`implemented for connected components in a mask.`
rpm-build	01e673	`Better error handling and debug output with jpeg2000 read/write.`
rpm-build	01e673	`Implemented base64 encoding. This allows binary data to be represented`
rpm-build	01e673	`as a C string that can be compiled. Used this in bmf utility.`
rpm-build	01e673	`Implemented automatic code generation for deserialization from`
rpm-build	01e673	`compiled strings (stringcode.*)`
rpm-build	01e673	`Regression tests write to leptonica subdir of <Temp> in windows; in`
rpm-build	01e673	`unix it is optional. This avoids spamming the <Temp> directory.`
rpm-build	01e673	`Added new colorspace conversions (XYZ, LAB).`
rpm-build	01e673	`New source files: encoding.c, bmfdata.h, stringcode.c, stringcode.h,`
rpm-build	01e673	`bootnumgen.c.`
rpm-build	01e673	`Removed source files: convolvelow.c, graymorphlow.c`
rpm-build	01e673	`New programs: genfonts_reg, colorize_reg, texturefill_reg,`
rpm-build	01e673	`autogentest1, autogentest2.`
rpm-build	01e673	`alltests_reg now has 66 tests.`
rpm-build	01e673
rpm-build	01e673	`1.71 18 Jun 14`
rpm-build	01e673	`This version supports tesseract 3.04. In particular, 3.04`
rpm-build	01e673	`has automatic conversion of a set of scanned images, either in a`
rpm-build	01e673	`directory or coming directly from a scanner, into pdf with injected`
rpm-build	01e673	`text. This is something we've wanted to do for several years!`
rpm-build	01e673	`Improved jp2k header reading, including resolution.`
rpm-build	01e673	`Removed src files: rotateorthlow.c, pdfio.c, pdfiostub.c`
rpm-build	01e673	`Renamed jp2kio.c, jp2kiostub.c ==> jp2kheader.c, jp2kheaderstub.c.`
rpm-build	01e673	`These header reading functions parse the jp2k files, and`
rpm-build	01e673	`don't require a jpeg2000 library.`
rpm-build	01e673	`New jp2kio.c, jp2kiostub.c, that uses openjpeg-2.X to read`
rpm-build	01e673	`and write jp2k. We now support I/O from these formats:`
rpm-build	01e673	`png, tiff, jpeg, bmp, pnm, webp, gif and jp2k`
rpm-build	01e673	`as well as writing to PostScript and pdf.`
rpm-build	01e673	`New pdfio1.c, pdfio1stub.c, pdfio2.c pdfio2stub.c, where we've`
rpm-build	01e673	`split functions into high and low level.`
rpm-build	01e673	`Fixed memory bug in bilateral.c`
rpm-build	01e673	`Improved reading/write of binary data from file. For example,`
rpm-build	01e673	`l_binaryReadStream() can now be used to capture data piped`
rpm-build	01e673	`in via stdin.`
rpm-build	01e673	`Font directory now arg passed in everywhere (not hardcoded)`
rpm-build	01e673	`Don't write temporary files to /tmp; only to a small number of`
rpm-build	01e673	`subdirectories, to avoid spamming the /tmp directory. E.g.,`
rpm-build	01e673	`for regression tests, the current output is now to /tmp/regout/.`
rpm-build	01e673	`For jpeg reading modify pixReadJpeg() to take as a hint`
rpm-build	01e673	`a bit flag that allows extraction of only the luminance channel.`
rpm-build	01e673	`Allow wrapping of pdf objects from png images without transcoding`
rpm-build	01e673	`(thanks to Jeff Breidenbach)`
rpm-build	01e673	`Better support for alpha on read/write with png, including`
rpm-build	01e673	`1 bpp with colormap, alpha (supported in png with transparency array)`
rpm-build	01e673
rpm-build	01e673	`1.70 3 Feb 14 (distribution to debian; ubuntu 14-04; 4.1.0)`
rpm-build	01e673	`New bilateral filtering.`
rpm-build	01e673	`New simple character recognition utility.`
rpm-build	01e673	`Improved dewarping functionality, in model building and rendering.`
rpm-build	01e673	`More flexible use of ref models.`
rpm-build	01e673	`Better and more consistent handling of alpha layer in RGBA, though`
rpm-build	01e673	`use of the spp field. Ability to handle more png files with alpha,`
rpm-build	01e673	`including palette with alpha.`
rpm-build	01e673	`New fast converters from jpeg and jpeg2000 to pdf, without transcoding.`
rpm-build	01e673	`Made bmp reader (and pix reading in general) more robust; avoid`
rpm-build	01e673	`size overflow errors.`
rpm-build	01e673	`New text labelling operations; depth conversion of a set of images`
rpm-build	01e673	`New license (essentially BSD 2-clause), to specify conditions`
rpm-build	01e673	`for both source and binary distribution.`
rpm-build	01e673	`Improved auto make: make all progs, install just 11, test 61.`
rpm-build	01e673	`New src files: bilateral.{c,h}, dewarp1.c, dewarp2.c,`
rpm-build	01e673	`dewarp3.c, dewarp4.c, jp2kio.c, jp2kiostub.c,`
rpm-build	01e673	`pixlabel.c, recogbasic.c, recogdid.c, recogident.c,`
rpm-build	01e673	`recogtrain.c, recog.h`
rpm-build	01e673	`New prog files: adaptmap_dark.c, alphaxform_ret.c,`
rpm-build	01e673	`bilateral_reg.c, binarize_reg.c, binarize_set.c,`
rpm-build	01e673	`blackwhite_reg.c, blend1_reg.c, blend3_reg.c, blend4_reg.c,`
rpm-build	01e673	`boxa1_reg.c, colorcontent_reg.c, coloring_reg.c,`
rpm-build	01e673	`colorspace_reg.c, compare_reg.c, converttopdf.c,`
rpm-build	01e673	`croptest.c, dewarprules.c, dewarptest1.c, dewarptest2.c,`
rpm-build	01e673	`dewarptest3.c, dewarptest4.c, displayboxa.c, displaypix.c,`
rpm-build	01e673	`displaypixa.c, findcorners_reg.c, fpix1_reg.c,`
rpm-build	01e673	`fpix2_reg.c, fpixcontours.c, insert_reg.c, italictest.c,`
rpm-build	01e673	`jpegio_reg.c, label_reg.c, multitype_reg.c, nearline_reg.c,`
rpm-build	01e673	`newspaper_reg.c, numa1_reg.c, numa2_reg.c, recogsort.c,`
rpm-build	01e673	`recogtest1.c, shear1_reg.c, webpio_reg.c, wordboxes_reg.c`
rpm-build	01e673	`Removed src files: arithlow.c, binexpandlow.c, binreducelow.c,`
rpm-build	01e673	`dewarp.c`
rpm-build	01e673	`Removed prog files: blend_reg.c, blendtest1.c,`
rpm-build	01e673	`dewarptest.c, fpix_reg.c, inserttest.c, numa_reg.c, rotatetest2.c`
rpm-build	01e673	`shear_reg, xvdisp.c`
rpm-build	01e673
rpm-build	01e673	`1.69 16 Jan 12 (distribution to debian; ubuntu 12-04; 3.0.0)`
rpm-build	01e673	`Fixed bug in pdf generation for large files, using a new`
rpm-build	01e673	`double array (dnabasic.c). Added several new modes for pdf`
rpm-build	01e673	`generation from sets of images.`
rpm-build	01e673	`Dewarp based on image content now aligns to left and right margins;`
rpm-build	01e673	`works at book level; is more robust to bad disparity models;`
rpm-build	01e673	`version 2 serialization.`
rpm-build	01e673	`Fixed regutils to return the actual number of errors.`
rpm-build	01e673	`Improved sorting efficiency of numas in cases where binning,`
rpm-build	01e673	`which is order N, makes sense.`
rpm-build	01e673	`Fixed fpix serialization (now version 2).`
rpm-build	01e673	`New version (5) of xtractprotos, allows putting prototypes in-line in`
rpm-build	01e673	`allheaders.h. Having them separately in leptprotos.h still an option`
rpm-build	01e673	`New copyright (BDS, 2 clause) on src files.`
rpm-build	01e673	`Removed all trailing whitespace in src files.`
rpm-build	01e673	`New src files: boxfunc4.c coloring.c, dnabasic.c`
rpm-build	01e673	`New prog files: dna_reg.c, alphaops_reg.c`
rpm-build	01e673	`Removed prog file: alphaclean_reg.c`
rpm-build	01e673
rpm-build	01e673	`1.68 10 Mar 11`
rpm-build	01e673	`Fixed windows issues with passing pointers across C-runtime boundaries`
rpm-build	01e673	`when using dlls, by providing special functions (e.g., lept_fopen()).`
rpm-build	01e673	`Proper version numbers are now set with automake.`
rpm-build	01e673	`New utility (quadtree.c) for generating quadtree statistics.`
rpm-build	01e673	`New utility (in colorspace.c) for conversions to and from YUV.`
rpm-build	01e673	`Refactored functions for assembling image data for generating`
rpm-build	01e673	`either PS or PDF images using g4, jpeg or flate encoding.`
rpm-build	01e673	`Better tempfile names, using current time in microseconds.`
rpm-build	01e673	`Functions for getting resolution from jpeg and png files.`
rpm-build	01e673	`Use size_t throughout for reading and writing binary data.`
rpm-build	01e673	`Deprecate arrayRead*() and arrayWrite() functions; replace in`
rpm-build	01e673	`the library with l_binaryRead*() and l_binaryWrite().`
rpm-build	01e673	`Better handling of colormap images for in-place rasterop and shear.`
rpm-build	01e673	`New utility (bytearray.c) for parsing and handling binary data;`
rpm-build	01e673	`used for generating PDF files.`
rpm-build	01e673	`New utility (pdfio.c) for generating PDF files.`
rpm-build	01e673	`Refactored regutils functions to make them simpler to use.`
rpm-build	01e673	`Top-level deskew now works on any image.`
rpm-build	01e673	`Added functions in utils.c for cross-platform development, mostly`
rpm-build	01e673	`for functions that make and remove directories, copy, move`
rpm-build	01e673	`and delete files, etc. It should now be straightforward to write`
rpm-build	01e673	`programs that will compile and run on windows.`
rpm-build	01e673	`Reg tests have better printout; all give timings.`
rpm-build	01e673	`New utility program: convertfilestopdf`
rpm-build	01e673
rpm-build	01e673	`1.67 9 Nov 10`
rpm-build	01e673	`Autoconf: now built with James Cuirot's config files that`
rpm-build	01e673	`build the library and all 200 progs.`
rpm-build	01e673	`New sudoku solver. Just a game, but there are interesting aspects.`
rpm-build	01e673	`Modified parseprotos.c to reject a type of "extern" decl.`
rpm-build	01e673	`Add faster implementation for very small gray morphology`
rpm-build	01e673	`operations (3x1, 1x3, 3x3).`
rpm-build	01e673	`Eliminate warnings on recent gcc if you don't check return values`
rpm-build	01e673	`from fread, fscanf, fgets, system, etc.`
rpm-build	01e673	`Convolution: new functions for windowed variance and stdev; allow`
rpm-build	01e673	`non-square kernel for windowed mean square.`
rpm-build	01e673	`Put stdio.h and stdlib.h in alltypes.h, so they're not required`
rpm-build	01e673	`in any .c files.`
rpm-build	01e673	`Replace numaConvolve(), which is just a windowed mean, by`
rpm-build	01e673	`windowed statistics functions (mean, mean square, variance).`
rpm-build	01e673	`Generalize pixExtractOnLine() for arbitrary lines.`
rpm-build	01e673	`Add pix interface to webp (webpio.c, webpiostub.c). This is a`
rpm-build	01e673	`new open source codec, based on the video codec vpx (webm).`
rpm-build	01e673	`Serialization of FPix and DPix`
rpm-build	01e673	`Interconversion between FPix and DPix`
rpm-build	01e673	`Integer scaling of FPix and DPix; includes the last row and column.`
rpm-build	01e673	`New convertfiles.c: depth conversion on files in a directory.`
rpm-build	01e673	`Testing programs in prog:`
rpm-build	01e673	`convolve_reg.c, numa_reg.c: expanded test set`
rpm-build	01e673	`projection_reg.c (tests pixRowStats(), pixColumnStats())`
rpm-build	01e673	`dewarptest.c: output ps and pdf files`
rpm-build	01e673	`writemtiff.c: simple driver to write images to a single file`
rpm-build	01e673
rpm-build	01e673	`1.66 3 Aug 10`
rpm-build	01e673	`More tweaks for including (or not) bounding box hints for`
rpm-build	01e673	`PS wrapping. Default is to write b.b., but not in functions`
rpm-build	01e673	`that wrap images as full pages (psio1.c, psio2.c)`
rpm-build	01e673	`pix4.c split in two files, and added function to identify c.c.`
rpm-build	01e673	`that are sufficiently similar in shape to rectangles (pix5.c)`
rpm-build	01e673	`Modify 2 and 4 bit setters to clip the input value so that it can`
rpm-build	01e673	`only affect the pixel requested (arrayaccess.c, arrayaccess,h)`
rpm-build	01e673	`New pseudorandom sequence functions (numafunc1.c)`
rpm-build	01e673	`Dewarping camera-based images using textlines (dewarp.c, prog/dewarp*)`
rpm-build	01e673	`Geometrical function for aggregating overlapping bounding boxes.`
rpm-build	01e673	`Programs to generate figures for book chapter "Document Image`
rpm-build	01e673	`Applications" in "Mathematical Morphology: theory and applications"`
rpm-build	01e673	`(see: http:/www.leptonica.org/najman-talbot-book-chapter.html)`
rpm-build	01e673	`(prog/livre*.c)`
rpm-build	01e673	`Functions that do affine and other operations in images with`
rpm-build	01e673	`alpha blending at edges: pix*WithAlpha(). Also do this`
rpm-build	01e673	`with a gamma/inverse-gamma wrapper to further reduce edge aliasing.`
rpm-build	01e673	`(rotate.c, scale.c, projective.c, affine.c, bilinear.c,`
rpm-build	01e673	`prog/alphaxform_reg.c)`
rpm-build	01e673	`Improved color segmentation (fixed bugs; made faster)`
rpm-build	01e673	`Higher order least square fits: quadratic, cubic, quartic. (pts.c)`
rpm-build	01e673	`Various mods for otsu binarization and the SplitDistribution()`
rpm-build	01e673	`functions (numafunc2.c, prog/otsutest2.c)`
rpm-build	01e673	`Control sampling in convolution output (convolve.c, prog/fpix_reg.c)`
rpm-build	01e673	`Morphological operations on numas (numafunc1.c, numafunc2.c,`
rpm-build	01e673	`prog/numa_reg.c)`
rpm-build	01e673	`Pix serialization wrapped so we can use pixRead(), etc on these`
rpm-build	01e673	`files (spixio.c, readfile.c, writefile.c)`
rpm-build	01e673	`Gif read/write to memory fixed (and cheated -- using files) (gifio.c)`
rpm-build	01e673	`New fpix and dpix accessors; contour rendering on fpix (fpix1.c, fpix2.c)`
rpm-build	01e673	`Various functions for linearly mapping colors and displaying arrays`
rpm-build	01e673	`of colors (pix4.c, blend.c, prog/rankhisto_reg.c)`
rpm-build	01e673	`Functions for getting approximate ranges of colors and color`
rpm-build	01e673	`components in an image (pix4.c, colormap.c)`
rpm-build	01e673	`Cleaned up windows platform and compiler defines and macros.`
rpm-build	01e673
rpm-build	01e673	`1.65 5 Apr 10`
rpm-build	01e673	`Added regression test utility functions for standardizing and`
rpm-build	01e673	`automating construction and running of regression tests. Makes the`
rpm-build	01e673	`golden files when the 2nd arg to the reg test is 'generate'.`
rpm-build	01e673	`(regutils.{c,h})`
rpm-build	01e673	`Converted 22 reg tests in prog to use this; invoked with alltests_reg.`
rpm-build	01e673	`Goal is to put all prog/*_reg.c into this format and put a set`
rpm-build	01e673	`of golden files on the web.`
rpm-build	01e673	`Small fixes in gifio for handling streams properly.`
rpm-build	01e673	`New functions for shifting colors, hue invariant transforms, etc`
rpm-build	01e673	`(blend.c)`
rpm-build	01e673	`prog/dwamorph.c: rename 1_reg.c to dwalineargen.c; others`
rpm-build	01e673	`converted to standard reg tests.`
rpm-build	01e673	`New rgb convolution functions.`
rpm-build	01e673	`For PS output, write all images with a bounding box hint and with`
rpm-build	01e673	`page numbers, which works for both embedded (e.g., in tex) and`
rpm-build	01e673	`full page generated PS. Once converted to pdf, this is fine`
rpm-build	01e673	`in all situation.`
rpm-build	01e673	`New functions for initialization and random insertion with pixcomp.`
rpm-build	01e673	`For color quantization, make the lightest color white if sufficiently`
rpm-build	01e673	`close; ditto for black (colorquant1.c, colorquant2.c).`
rpm-build	01e673	`Rank binning of 8 bpp and rgb images (numafunc2.c, pix4.c)`
rpm-build	01e673	`A function to rank colors by the intensity of the minimum comp (pix4.c)`
rpm-build	01e673	`New pixRotateBinaryNice(), rotates 1 bpp pix in such a way that`
rpm-build	01e673	`the shear lines aren't visible. (rotate.c)`
rpm-build	01e673	`New pixSaveTiledWithText(), a convenience function to append text`
rpm-build	01e673	`to images that are being tiled. (writefile.c)`
rpm-build	01e673	`Stereoscopic warping functions and stereo pair functions (warper.c)`
rpm-build	01e673	`Linear interpolated shear -- better than rasterop shear (shear.c)`
rpm-build	01e673	`Option to use higher quality chroma (U,V) sampling in jpeg (jpegio.c)`
rpm-build	01e673	`Rename Bmf --> L_Bmf.`
rpm-build	01e673	`New tests in prog:`
rpm-build	01e673	`alltests_reg.c alphaclean_reg.c, psio_reg.c, rankbin_reg.c,`
rpm-build	01e673	`rankhisto_reg.c, warpertest.c`
rpm-build	01e673
rpm-build	01e673	`1.64 3 Jan 10`
rpm-build	01e673	`Easy setup for standard byte processing on 8 bpp pix (pix2.c)`
rpm-build	01e673	`Evaluation of difference between similar images; test for`
rpm-build	01e673	`similar images and (compare.c)`
rpm-build	01e673	`Subpixel scaling, with color input and separate scale factors (pixconv.c)`
rpm-build	01e673	`Fix tiff header reader to get correct format (tiffio.c)`
rpm-build	01e673	`Enable pixDisplay() to work with i_view (windows) and with`
rpm-build	01e673	`xzgv and xli as well as xv; allow application to choose`
rpm-build	01e673	`which to use (writefile.c).`
rpm-build	01e673	`Use a mask to specify regions that are changed by a morphological`
rpm-build	01e673	`operation (morphapp.c).`
rpm-build	01e673	`Improve the default sharpening for scaling (scale.c)`
rpm-build	01e673	`Function to test for equivalence of file data (utils.c)`
rpm-build	01e673	`Select and read image files with embedded index (readfile.c)`
rpm-build	01e673	`Fix box size calculation in pixEmbedForRotation(); solution`
rpm-build	01e673	`provided by Brent Sundheimer.`
rpm-build	01e673	`New pixDisplayMultiple(), instead of calling gthumb directly; this`
rpm-build	01e673	`is now set up to use i_view for windows.`
rpm-build	01e673	`Changed criteria for determining if an image is color (colorcontent.c,`
rpm-build	01e673	`colorquant{1,2}.c.`
rpm-build	01e673	`Optional mode where the filename extension is automatically written`
rpm-build	01e673	`to output image files; particularly useful for windows.`
rpm-build	01e673	`Initialize boxa and pixa as full, with minimal placeholders.`
rpm-build	01e673	`Get rank valued numbers and boxes in numa and boxa.`
rpm-build	01e673	`Cute implementation for finding largest solid rectangle (maze.c)`
rpm-build	01e673	`New median cut quantization for mixed (color/gray) images (colorquant2.c)`
rpm-build	01e673	`Many changes to allow the library and applications be built easily`
rpm-build	01e673	`in windows. There is now a thorough windows readme, written by Tom`
rpm-build	01e673	`Powers, for doing this. The windows build information and`
rpm-build	01e673	`project files are now in a new vs2008 directory.`
rpm-build	01e673
rpm-build	01e673	`1.63 8 Nov 09`
rpm-build	01e673	`Added pixScaleToGrayFast(), a faster version with very similar quality.`
rpm-build	01e673	`Fixed scaleGrayLILow() to handle edge pixels more accurately`
rpm-build	01e673	`Text processing:`
rpm-build	01e673	`new text application (finditalic.c, prog/finditalic.c) for locating`
rpm-build	01e673	`words in italic type style.`
rpm-build	01e673	`Easier to add text to a pix using the bitmap font stored in`
rpm-build	01e673	`the font directory; see, e.g., prog/writetxt_reg.c.`
rpm-build	01e673	`Blending of 2 images with an alpha channel: pixBlendWithGrayMask()`
rpm-build	01e673	`Fixed bug in color segmentation; it now (again) works properly.`
rpm-build	01e673	`New utility (pixcomp.c) for handling compressed pix arrays in`
rpm-build	01e673	`memory; new PixComp and PixaComp structs.`
rpm-build	01e673	`Fast serialization of pix without compressing (pixSerializeToMemory`
rpm-build	01e673	`and pixDeserializeFromMemory); required serialized colormaps`
rpm-build	01e673	`FileI/O: new functions for reading file headers.`
rpm-build	01e673	`PostScript generation modernized; split psio.c into psio1.c`
rpm-build	01e673	`and psio2.c; added level 3 (flate) encoding.`
rpm-build	01e673	`new functions for reading and writing multipage tiffs, for`
rpm-build	01e673	`arbitrary input images. For writing, compression is lossless`
rpm-build	01e673	`(either g4 or zip)`
rpm-build	01e673	`update all I/O stub files`
rpm-build	01e673	`Miscellaneous: new pixaAddBorderGeneral(); new functions in pix3.c`
rpm-build	01e673	`for counting fg pixels and summing 8 bpp pixels by column and row;`
rpm-build	01e673	`new numaUniformSampling() for resampling with interpolation;`
rpm-build	01e673	`subpixel scaling.`
rpm-build	01e673	`New or improved regression tests in prog:`
rpm-build	01e673	`extrema_reg, pixalloc_reg, blend2_reg, rotateorth_reg,`
rpm-build	01e673	`ioformats_reg, colorseg_reg, pixcomp_reg, pixserial_reg,`
rpm-build	01e673	`writetext_reg, psioseg_reg, subpixel_reg.`
rpm-build	01e673	`Interface changes:`
rpm-build	01e673	`findFileFormat() and findFileFormatBuffer(): now returns format`
rpm-build	01e673	`using input ptr. The function return value is 0 if OK; 1 on error`
rpm-build	01e673	`rename: pixThresholdPixels() --> pixThresholdPixelSum()`
rpm-build	01e673
rpm-build	01e673	`1.62 26 Jul 09`
rpm-build	01e673	`Expanded composite Dwa implementation as a sequence of operations,`
rpm-build	01e673	`so that it now works beyond a size of 63. It's typically about 2x`
rpm-build	01e673	`faster than the composite rasterop implementation (with help`
rpm-build	01e673	`from Ankur Jain). Also use data transfer instead of data copy`
rpm-build	01e673	`whenever possible. Thorough tests with binmorph4_reg and binmorph5_reg.`
rpm-build	01e673	`New functions in colorseg.c for masking and histogramming in HSV`
rpm-build	01e673	`color space.`
rpm-build	01e673	`Treat string constants rigorously as const char*, initializing`
rpm-build	01e673	`to char[] if to be used as non-const, or in some cases casting`
rpm-build	01e673	`to char*. This avoids compiler warnings.`
rpm-build	01e673	`Improved color quantization using existing colormap for octcubes`
rpm-build	01e673	`and a new version for grayscale. This will rigorously map most`
rpm-build	01e673	`black and most white octcubes (rsp) to black and white`
rpm-build	01e673	`if they exist in the colormap.`
rpm-build	01e673	`Fast quantization to an existing colormap for color and grayscale.`
rpm-build	01e673	`Fixed some bugs; e.g., in pixAffineSampled() for 1 bpp with`
rpm-build	01e673	`L_BRING_IN_BLACK; reading and writing pnm for 2 and 4 bpp.`
rpm-build	01e673	`In pngio.c, enable compile time control over these settings:`
rpm-build	01e673	`converting 16 bpp --> 8 bpp on read`
rpm-build	01e673	`removing alpha channel on read`
rpm-build	01e673	`setting zlib compression on write`
rpm-build	01e673	`For general scaling, allow sharpening to be optional, and provided`
rpm-build	01e673	`faster sharpening operations.`
rpm-build	01e673	`Improve support for 16 bpp grayscale.`
rpm-build	01e673	`For scaleToGray* functions, reduce the width truncation.`
rpm-build	01e673	`In psio.c, new functions for converting segmented page images`
rpm-build	01e673	`(text and image) into level 2 PostScript.`
rpm-build	01e673	`Removed all implicit casting to const char*.`
rpm-build	01e673	`New custom pix memory allocator, designed for large pix whose`
rpm-build	01e673	`memory needs to be reused many times.`
rpm-build	01e673	`In xtractprotos, we now allow prepending an arbitrary string to`
rpm-build	01e673	`each prototype.`
rpm-build	01e673	`In environ.h, additions for MSVC to work with VC++6, including`
rpm-build	01e673	`prototpye strings for dll import and export (thanks to Ray Smith).`
rpm-build	01e673	`In colorseg.c, new functions for building HSV histograms, finding`
rpm-build	01e673	`peaks, and generating masks based on the peaks.`
rpm-build	01e673	`New or improved regression tests:`
rpm-build	01e673	`pixalloc_reg, binmorph4_reg, binmorph5_reg, conversion_reg,`
rpm-build	01e673	`scale_reg, cmapquant_reg,`
rpm-build	01e673
rpm-build	01e673	`1.61 26 Apr 09`
rpm-build	01e673	`New histo-based grayscale quantization: pixGrayQuantizeFromHisto(),`
rpm-build	01e673	`that is used in new pixQuanitzeIfFewColorsMixed().`
rpm-build	01e673	`Made final fix in pixBlockconv(). No underflows; no more overflows!`
rpm-build	01e673	`More efficient rgb write with pnm.`
rpm-build	01e673	`Add proto to jpegiostub.c, allowing proper use of the stubber.`
rpm-build	01e673	`Fix several filter functions to use proper test on filter size; viz.,`
rpm-build	01e673	`pixMinMaxTiles(), several functions in convolve.c.`
rpm-build	01e673	`Redo shear implementation to handle arbitrary angles, to handle`
rpm-build	01e673	`colormapped images, and to avoid the singularity at pi/2.`
rpm-build	01e673	`Removed both static vars from pixSaveTiled().`
rpm-build	01e673	`Generalized pixRotate() to handle colormapped images, and to use`
rpm-build	01e673	`pixRotateBySampling() in place of the removed pixRotateEuclidean().`
rpm-build	01e673	`New skew finder for full angle range, pixFindSkewOrthogonalRange().`
rpm-build	01e673	`For skew detection, now allow shear about image center as well as`
rpm-build	01e673	`about the UL corner.`
rpm-build	01e673	`New rotation reg tests: rotate1_reg.c and rotate2_reg.c.`
rpm-build	01e673	`Better serialization format for boxaa; introduce new version numbers`
rpm-build	01e673	`for boxaa, pixa, and boxa, as required.`
rpm-build	01e673	`Proper init in boxGetGeometry(), boxaGetBoxGeometry(), and the`
rpm-build	01e673	`accessors in sel1.c and kernel.c.`
rpm-build	01e673	`Improved Numa functions in numafunc1.c and numafunc2.c; in`
rpm-build	01e673	`particular, numaMakeHistogramAuto() and numaGetStatsUsingHistogram().`
rpm-build	01e673	`With all histo generators, make sure the start and binsize params`
rpm-build	01e673	`are properly set and are used.`
rpm-build	01e673	`Interface change: Use these parameters implicitly in`
rpm-build	01e673	`numaHistogramGetRankFromVal() and numaHistogramGetValFromRank().`
rpm-build	01e673	`Interface change to ptaGetLinearLSF(): add 1 optional parameter.`
rpm-build	01e673	`In several pixaDisplay*() functions, handle colormaps properly.`
rpm-build	01e673	`pixafunc.c split to pixafunc1.c and pixafunc2.c.`
rpm-build	01e673	`New connected component selections and options in pixaSort.`
rpm-build	01e673	`Patch from Tony Dovgal for reading tiff rgba files.`
rpm-build	01e673	`Added new logical operation options for numas.`
rpm-build	01e673	`New pixConvertRGBToGrayMinMax() that chooses min or max of 3 components.`
rpm-build	01e673	`Computation of pixelwise aligned stats between multiple images`
rpm-build	01e673	`of the same size (e.g., video), in pix4.c.`
rpm-build	01e673	`Very fast binsort implemented for boxa and pixa.`
rpm-build	01e673	`Cleanup and rename stack, queue, heap and ptra functions:`
rpm-build	01e673	`all structs and typedefs start with "L_"`
rpm-build	01e673	`all functions start with "l"`
rpm-build	01e673	`Sel creation for crosses and T junctions.`
rpm-build	01e673	`New thresholding operations to binary; split out from adaptmap.c`
rpm-build	01e673	`into binarize.c.`
rpm-build	01e673	`Implementation of sauvola binarization, including use of pixtiling.`
rpm-build	01e673	`Added composite parallel union and intersection morphological operations.`
rpm-build	01e673	`Small changes to scaling and rotation to improve accuracy; only`
rpm-build	01e673	`visible on very tiny, symmetric images.`
rpm-build	01e673	`Implemented DPix (double precision data); useful for the mean`
rpm-build	01e673	`square accumulator for sauvola binarization.`
rpm-build	01e673	`New fast hybrid grayscale seedfill, in addition to the interative`
rpm-build	01e673	`version (contributed by Ankur Jain).`
rpm-build	01e673	`New or improved regression tests:`
rpm-build	01e673	`rotate1_reg, rotate2_reg, shear_reg, numa_reg, skew_reg,`
rpm-build	01e673	`ptra1_reg, ptra2_reg, paint_reg, smallpix_reg, pta_reg,`
rpm-build	01e673	`pixmem_reg, binarize_reg, grayfill_reg.`
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673	`1.60 19 Jan 09`
rpm-build	01e673	`Fixed bug in pixBlockconv(), introduced in 1.59, that causes`
rpm-build	01e673	`overflow when convolving with an image that has white (255)`
rpm-build	01e673	`at the edges. [quickly found by Dave Bryan]`
rpm-build	01e673	`Include function to display freetype fonts in a pix.`
rpm-build	01e673	`The files freetype.c and freetype.h are in the distribution, but are not`
rpm-build	01e673	`yet linked into the library. This is contributed by Tony Dovgal,`
rpm-build	01e673	`and this version works only for MSVC.`
rpm-build	01e673	`Found that the problems with binary compression in giflib are fixed`
rpm-build	01e673	`with giflib 4.1.6.`
rpm-build	01e673
rpm-build	01e673	`1.59 11 Jan 09`
rpm-build	01e673	`Lots of changes since 1.58.`
rpm-build	01e673	`New files: affinecompose.c, ptra.c, warper.c, watershed.{h,c}.`
rpm-build	01e673	`Split: boxfunc.c --> (boxfunc1.c, boxfunc2.c, boxfunc3.c)`
rpm-build	01e673	`Improved connected component filtering, with logical functions`
rpm-build	01e673	`applied to indicator arrays (pix4.c, pixafunc.c, numafunc1.c).`
rpm-build	01e673	`Function to determine if an image can be quantized nicely with`
rpm-build	01e673	`only a few colors (colorcontent.c, pixconv.c).`
rpm-build	01e673	`New gray seed-filling functions (seedfill.c, seedfilllow.c).`
rpm-build	01e673	`Fixed bugs in tophats and hdome, due to misuse of pixSubtractGray()`
rpm-build	01e673	`(morphapp.c).`
rpm-build	01e673	`New function for improving contrast (adaptmap.c)`
rpm-build	01e673	`Watershed transform (still slightly buggy) (watershed.c,h).`
rpm-build	01e673	`Fast random access into a pix using line pointers (pix1.c, arrayaccess.*)`
rpm-build	01e673	`Conversions of colormaps from gray to color and v.v. (colormap.c)`
rpm-build	01e673	`Seedfill function that applies an upper limit to the fill`
rpm-build	01e673	`distance (seedfill.c)`
rpm-build	01e673	`New function for warping images with random harmonic distortion`
rpm-build	01e673	`(with help from Tony Dovgal).`
rpm-build	01e673	`New generic ptr array utility: all O(1) functions of a stack plus`
rpm-build	01e673	`random replace, insert and delete (ptra.c).`
rpm-build	01e673	`Simple functions for colorizing a grayscale image with an arbitrary`
rpm-build	01e673	`color (pixconv.c, colormap.c)`
rpm-build	01e673	`Flexible affine transforms (translation, scale, rotation) on pta`
rpm-build	01e673	`and boxa (affinecompose.c).`
rpm-build	01e673	`Clipping of foreground (both exact and approximate) starting from`
rpm-build	01e673	`within a rectangular region of the image (pix4.c)`
rpm-build	01e673	`Blending a colored rectangle over an image (pix2.c, boxfunc3.c)`
rpm-build	01e673	`Generation of rectangle covering of mask components (boxfunc3.c).`
rpm-build	01e673	`Block convolution using tiles (for very large images) (convolve.c)`
rpm-build	01e673	`New or improved regression tests in prog:`
rpm-build	01e673	`locminmax_reg, lowaccess_reg, grayfill_reg, adaptnorm_reg,`
rpm-build	01e673	`xformbox_reg, warper_reg, cmapquant_reg, compfilter_reg,`
rpm-build	01e673	`splitcomp_reg, affine_reg, bilinear_reg, projective_reg`
rpm-build	01e673	`Acknowledgments:`
rpm-build	01e673	`(1) Big thanks to Tony Dovgal for helping with the warping`
rpm-build	01e673	`(e.g. for captcha). Tony also provided an implementation that`
rpm-build	01e673	`allows rendering truetype fonts into a Pix on windows.`
rpm-build	01e673	`This is not yet incorporated, because it opens a huge`
rpm-build	01e673	`"can of worms," which is OK if you're going fishing but`
rpm-build	01e673	`maybe not if you're trying to support leptonica on many platforms.`
rpm-build	01e673	`TBD.`
rpm-build	01e673	`(2) David Shao provided a libtools build system that includes`
rpm-build	01e673	`building the prog directory! I believe this will work, but it`
rpm-build	01e673	`is is not yet included because of problems I continue to have`
rpm-build	01e673	`with macros in version 2.61 of gnu libtools.`
rpm-build	01e673	`(3) Steve Rogers is working on a MSVC build for the prog directory.`
rpm-build	01e673	`I hope to have this available for 1.60.`
rpm-build	01e673
rpm-build	01e673	`1.58 27 Sept 08`
rpm-build	01e673	`Added serialization for numaa.`
rpm-build	01e673	`New octree quantizer pixOctreeQuantByPopulation(), that uses a`
rpm-build	01e673	`mixture of level2 and level4 octcubes. Renamed many functions`
rpm-build	01e673	`in colorquant1.c, and arranged/documented them more carefully.`
rpm-build	01e673	`Revised documentation in leptonica.org/papers/colorquant.pdf.`
rpm-build	01e673	`Simplified customization for I/O libraries and fmemopen() in environ.h.`
rpm-build	01e673	`Fixed bugs in colormap.c, viewfiles.c, pixarith.c.`
rpm-build	01e673	`Verified Adam Langley's jbig2enc (encoding jbig2 and generating pdf from`
rpm-build	01e673	`these encoded files) works properly with the current version -- see`
rpm-build	01e673	`Section 24 of README.html for usage and build hints.`
rpm-build	01e673	`New separable convolution; let pixConvolve() take 8, 16 and 32 bpp input.`
rpm-build	01e673	`New floating pt pix (FPix) utility, which allows convolution and`
rpm-build	01e673	`arithmetic operations on FPix; also interconversion to Pix.`
rpm-build	01e673	`Ability to read headers on multipage tiff.`
rpm-build	01e673	`More robust updown text detection in flipdetect.c.`
rpm-build	01e673	`Use of sharpening to improve scaling when the scale factor is near 1.0.`
rpm-build	01e673	`See prog/fpix_reg.c for regression test and usage.`
rpm-build	01e673	`See prog/blend_reg.c for blending regression test, with new functions.`
rpm-build	01e673
rpm-build	01e673	`1.57 13 Jul 08`
rpm-build	01e673	`New Debian distribution for 1.57 (thanks to Jeff Breidenbach).`
rpm-build	01e673	`Improved the Otsu-type approach for finding a binarization threshold,`
rpm-build	01e673	`by choosing the min in the histogram subject to constraints`
rpm-build	01e673	`(numafunc2.c, adaptmap.c)`
rpm-build	01e673	`New function pixSeedspread() in seedfill.c, similar to a voronoi tiling,`
rpm-build	01e673	`that is used for adaptive thresholding in pixThresholdSpreadNorm().`
rpm-build	01e673	`In the process, fixed a small bug in pixDistanceFunction().`
rpm-build	01e673	`(The approach was suggested by Ray Smith, and uses the fast`
rpm-build	01e673	`Vincent distance function method to expand each seed.)`
rpm-build	01e673	`Generalized the functions in kernel.c to use float weights`
rpm-build	01e673	`for general convolution (Version 2 for kernel), and added`
rpm-build	01e673	`gaussian kernel generation.`
rpm-build	01e673	`Put all jpeg header functions into jpegio.c, where they belong.`
rpm-build	01e673	`Fixed bugs in pixaInsertPix() and pixaRemovePix().`
rpm-build	01e673	`Added read/write serialization for Numaa.`
rpm-build	01e673	`New functions for comparing two images using bounding boxes (classapp.c).`
rpm-build	01e673
rpm-build	01e673	`1.56 12 May 08`
rpm-build	01e673	`Added several new 1d barcode decoders. The functional interface`
rpm-build	01e673	`is still in flux.`
rpm-build	01e673	`Autoconf! To get this working, it was necessary to: determine and`
rpm-build	01e673	`set the endian flag; select which libraries are to be linked;`
rpm-build	01e673	`determine if stream-based memory I/O is enabled.`
rpm-build	01e673	`This required a major cleanup of the include files, minimizing`
rpm-build	01e673	`dependencies on external library header files, and getting everything`
rpm-build	01e673	`to work with both autoconf (HAVE_CONFIG_H) and the old`
rpm-build	01e673	`customized makefile. Customization is now all in environ.h.`
rpm-build	01e673	`pixSaveTiled(): a new way to display tiled images.`
rpm-build	01e673	`pixtiling.c: interface for splitting an image into a set of`
rpm-build	01e673	`overlapping tiles, using mirrored borders for tiles touching the`
rpm-build	01e673	`image boundary.`
rpm-build	01e673	`pixBlendHardLight(): new blending mode with nice visual effects.`
rpm-build	01e673	`pixColorFraction(): determines extent of color in image`
rpm-build	01e673	`Both octree and median-cut color quantization check first if`
rpm-build	01e673	`image is essentially grayscale; improvements to both algorithms.`
rpm-build	01e673	`box*TransformOrdered(): general sequence of linear transforms.`
rpm-build	01e673	`colorquant_reg.c, xformbox_reg.c, hardlight_reg.c: new regr tests.`
rpm-build	01e673
rpm-build	01e673	`1.55 16 Mar 08`
rpm-build	01e673	`New functions for combining two images arbitrarily through a mask,`
rpm-build	01e673	`including mirrored tiling (pix3.c)`
rpm-build	01e673	`Modify pixSetMasked*() to work on all images (pix3.c)`
rpm-build	01e673	`New functions for extracting masked regions such as pixClipMasked()`
rpm-build	01e673	`(pix3.c) and pixMaskConnComp() and pixMaskBoxa() (boxfunc.c).`
rpm-build	01e673	`New functions to separate fg from bg (pix3.c), one of which is supported`
rpm-build	01e673	`by numaSplitDistribution (numafunc.c).`
rpm-build	01e673	`Modify sobel edge detector to take another parameter (edge.c)`
rpm-build	01e673	`Support for 4 bpp cmyk color space in jpeg (jpegio.c)`
rpm-build	01e673	`Modified median cut color quantization (colorquant2.c)`
rpm-build	01e673	`Renamed colorquant.c (for octree quant) --> colorquant1.c.`
rpm-build	01e673	`Absorbed conncomp.h and colorquant.h into specific files that`
rpm-build	01e673	`depend on them (colorquant1.c, conncomp.c, pix.h)`
rpm-build	01e673	`General convolution with utility for building kernels`
rpm-build	01e673	`(convolve.c, kernel.c)`
rpm-build	01e673	`Initial implementation of 1D barcode reader. So far, we just have the`
rpm-build	01e673	`signal processing to locate barcodes on a page, deskew them, and`
rpm-build	01e673	`find the bar widths, along with decoders for two formats.`
rpm-build	01e673	`(readbarcode.*, prog/barcodetest.c)`
rpm-build	01e673	`Made the default to stub out read/write for non-tiff image formats`
rpm-build	01e673	`to memory; it doesn't work on Macs & they were complaining (*io.c)`
rpm-build	01e673	`Include MSVC project files for building leptonlib under`
rpm-build	01e673	`windows (leptonlib.*)`
rpm-build	01e673
rpm-build	01e673	`1.54 21 Jan 08`
rpm-build	01e673	`Histogram equalization (enhance.c).`
rpm-build	01e673	`New functions for pixaa: serialization (r/w), creation`
rpm-build	01e673	`from pixa, and a tiled/scaled display into a pixa (pixabasic.c,`
rpm-build	01e673	`pixafunc.c).`
rpm-build	01e673	`Read/write of tiff to memory (instead of a file, using`
rpm-build	01e673	`the TIFFClientOpen() callback interface), contributed by Adam`
rpm-build	01e673	`Langley (tiffio.c, testing in prog/ioformats_reg).`
rpm-build	01e673	`Improved image statistics functions, both over tiles and`
rpm-build	01e673	`through a mask over the entire image. Added standard deviation`
rpm-build	01e673	`and variance; enable statistics for rgb and colormapped images,`
rpm-build	01e673	`in addition to 8 bpp grayscale (pix3.c). New function to`
rpm-build	01e673	`extract rgb components from a colormapped image (pix2.c).`
rpm-build	01e673	`Fix pixWriteStringPS() to work with all depths and colormap (psio.c)`
rpm-build	01e673	`Enable all non-tiff formats to also write and read to/from memory (*io.c)`
rpm-build	01e673	`Added support for read/write to gif, contributed by Tony Dovgal`
rpm-build	01e673	`(gifio.c, gifiostub.c, imageio.h). See Makefile for instructions`
rpm-build	01e673	`on enabling this.`
rpm-build	01e673
rpm-build	01e673	`1.53 29 Dec 07`
rpm-build	01e673	`Add 4th arg to pixDistanceFunction() to specify b.c.,`
rpm-build	01e673	`and fixed output to 16 bpp grayscale pix. (seedfill*.c)`
rpm-build	01e673	`New un-normalized block grayscale convolution (convolve.c)`
rpm-build	01e673	`Fixed bug in getLogBase2(), so that pixMaxDynamicRange() works`
rpm-build	01e673	`properly. This is useful for displaying a 16 bpp pix as`
rpm-build	01e673	`8 bpp (pixarith.c). New function for getting rank val for`
rpm-build	01e673	`rgb over a region specified by a mask (pix3.c). New function`
rpm-build	01e673	`for extremem values of rgb colormap (colormap.c). New`
rpm-build	01e673	`function pixGlobalNormNoSatRGB(), a variant of pixGlobalNormRGB()`
rpm-build	01e673	`that prevents saturation for any component above a specified`
rpm-build	01e673	`rank value (adaptmap.c). Added mechanism for memory`
rpm-build	01e673	`management of pix (pix1.c). Added selective morphology by`
rpm-build	01e673	`region given by a mask (morphapp.c). Fixed prototype extracdtion`
rpm-build	01e673	`to work properly with function prototypes as args; released`
rpm-build	01e673	`version 1.2 of xtractprotos (parseprotos.c, xtractprotos.c).`
rpm-build	01e673	`Add a boxa field for pixaa, along with serialization (pixabasic.c),`
rpm-build	01e673	`and modified display of pixaa to include this (pixafunc.c).`
rpm-build	01e673	`Coalesced the version numbers for pixa, pixaa, boxa, and boxaa`
rpm-build	01e673	`serialization (pix.h).`
rpm-build	01e673	`New progs: modifyhuesat displays modified versions on a grid;`
rpm-build	01e673	`textlinemask shows simple methods for extracting textline masks.`
rpm-build	01e673
rpm-build	01e673	`1.52 25 Nov 07`
rpm-build	01e673	`Implemented Breuel's whitespace partitioning algorithm (partition.c).`
rpm-build	01e673	`Generalized pixColorMagnitude() to allow different methods`
rpm-build	01e673	`for computing the color amount of a pixel (colorcontent.c).`
rpm-build	01e673	`New methods for computing overlap of boxes (boxfunc.c).`
rpm-build	01e673	`New methods for painting (solid) and drawing (outline) of boxes,`
rpm-build	01e673	`replacing boxaDisplay() with pixDrawBoxa() and pixPaintBoxa()`
rpm-build	01e673	`(pix2.c, boxfunc.c).`
rpm-build	01e673	`Ray Smith fixed bug in the distance function (seedfilllow.c).`
rpm-build	01e673	`For pixConvertTo1() and pixConvertTo8(), treat input pixs as a`
rpm-build	01e673	`const and never return a clone or altered cmap (pixconv.c).`
rpm-build	01e673	`Make pixGlobalNormalRGB() crash-proof (adaptmap.c).`
rpm-build	01e673	`Tony Dovgal added ability to read jpeg comment (jpegio.c).`
rpm-build	01e673
rpm-build	01e673	`1.51 21 Oct 07`
rpm-build	01e673	`Improved histogramming of gray and color images (pix3.c)`
rpm-build	01e673	`Histogram statistics (numafunc.c). Better handling of tiff`
rpm-build	01e673	`formats, testing rle and packbits output and improving`
rpm-build	01e673	`level 2 postscript conversion efficiency (readfile.c, psio.c).`
rpm-build	01e673	`Test program for r/w and display of Sels (prog/seliotest.c).`
rpm-build	01e673	`Use endiantest to determine automatically which flags to set`
rpm-build	01e673	`when compiling for big- or little-endians (endiantest.c)`
rpm-build	01e673	`Compute a color magnitude for each rgb pixel (colorcontent.c).`
rpm-build	01e673	`Allow separate modification of hue and saturation (enhance.c).`
rpm-build	01e673	`Global transform of color image for arbitrary white point (adaptmap.c).`
rpm-build	01e673
rpm-build	01e673	`1.50 07 Oct 07`
rpm-build	01e673	`\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|`
rpm-build	01e673	`NOTE CAREFULLY: The image format enum in imageio.h has`
rpm-build	01e673	`changed. This is an ABI change, and it requires`
rpm-build	01e673	`recompilation of the library.`
rpm-build	01e673	`\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|`
rpm-build	01e673	`Suggestions by David Bryan again resulted in several changes,`
rpm-build	01e673	`including improvements to the dwa generating functions and interfaces.`
rpm-build	01e673	`Major improvements for dwa code generation, including an`
rpm-build	01e673	`optional filename for the output code, adding function prototypes`
rpm-build	01e673	`to the code so it can easily be linked outside the library.`
rpm-build	01e673	`Addition of 2-way composable dwa functions for bricks, with`
rpm-build	01e673	`code addition to the library, and a new interpreter for dwa`
rpm-build	01e673	`composable brick sequences (fmorphauto.c, fhmtauto.c,`
rpm-build	01e673	`morphtemplate1.c, hmttemplate1.c, morphdwa.c, dwacomb*.2.c, morphseq.c)`
rpm-build	01e673	`Exhaustively tested in six programs (prog/binmorph*_reg,`
rpm-build	01e673	`prog/dwamorph*_reg).`
rpm-build	01e673	`New input modes for Sels, from both color bitmap editors`
rpm-build	01e673	`and a simple file format (sel1.c).`
rpm-build	01e673	`Better Sel generation functions in sel2.c, including combs for`
rpm-build	01e673	`composable brick operations and linear bricks for comparison.`
rpm-build	01e673	`Removed unnecessary copies for more efficient border add'n & removal.`
rpm-build	01e673	`Added RLE basline enc/dec for tiff.`
rpm-build	01e673	`Binary morphology documentation on the web page updated for these`
rpm-build	01e673	`changes/additions.`
rpm-build	01e673	`William Rucklidge unrolled inner loops and added LUTs to`
rpm-build	01e673	`speed up several more functions, including correlation`
rpm-build	01e673	`(correlscore.c), centroid calculation (morphapp.c),`
rpm-build	01e673	`2x linear interp grayscale scanning (scalelow.c),`
rpm-build	01e673	`thresholding to binary (grayquantlow.c), and removal`
rpm-build	01e673	`of colormaps to gray (pixconv.c).`
rpm-build	01e673
rpm-build	01e673	`1.49 23 Sep 07`
rpm-build	01e673	`\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|`
rpm-build	01e673	`NOTE CAREFULLY: The image format enum in imageio.h has`
rpm-build	01e673	`changed. This is an ABI change, and it requires`
rpm-build	01e673	`recompilation of the library.`
rpm-build	01e673	`\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|`
rpm-build	01e673	`Suggestions by David Bryan resulted in several changes.`
rpm-build	01e673	`pixUnpackBinary() unpacks to all depths.`
rpm-build	01e673	`Can now write and read tiff in LZW and ZIP (gzip) formats.`
rpm-build	01e673	`These, like uncompressed tiff, work on all bit depths.`
rpm-build	01e673	`Also enabled pnm 16 bpp r/w, both non-ascii and ascii.`
rpm-build	01e673	`ioFormatTest() now has better coverage and clarity; this is`
rpm-build	01e673	`used in prog/ioformats_reg.c.`
rpm-build	01e673	`Rewrite of morphautogen code to implement opening and closing atomically.`
rpm-build	01e673	`Cleaner interaction with new text templates (fmorphauto.c,`
rpm-build	01e673	`fhmtauto.c, sarray.c, template.txt,).`
rpm-build	01e673	`More regression testing (e.g., binmorph1_reg.c, binmorph3_reg.c).`
rpm-build	01e673
rpm-build	01e673	`1.48 30 Aug 07`
rpm-build	01e673	`William Rucklidge sped up pixCorrelationScore() by in-lining`
rpm-build	01e673	`all bit operations (jbclass.c).`
rpm-build	01e673	`Generalized rank filtering from 8 bpp to color (rank.c).`
rpm-build	01e673	`Fixed many functions that take a dest pix so that they don't fail if`
rpm-build	01e673	`the dimensions or depth are not consistent with the src pix.`
rpm-build	01e673	`The underlying change for this is to pixCopy() (pix1.c).`
rpm-build	01e673	`Improved display of Sel as a pix; added selaDisplayInPix() to`
rpm-build	01e673	`display all Sels in a Sela, orthogonal rotations of Sels (sel1.c).`
rpm-build	01e673	`New functions for thinning and thickening while preserving connectivity`
rpm-build	01e673	`and avoiding both free end erosion and dendritic cruft (ccthin.c,`
rpm-build	01e673	`prog/ccthin1_reg.c, prog/ccthin2_reg.c).`
rpm-build	01e673	`New function pixaDisplayTiledInRows() for compactly tiling pix`
rpm-build	01e673	`in a pixa, plus documentation of different existing methods. (pixafunc.c)`
rpm-build	01e673
rpm-build	01e673	`1.47 22 Jul 07`
rpm-build	01e673	`New brick rank order filter (rank.c, prog/ranktest.c, prog/rank_reg.c).`
rpm-build	01e673	`Use mirror reflection b.c. to avoid special processing at`
rpm-build	01e673	`boundaries (pix2.c). Simple sobel edge detector (edge.c).`
rpm-build	01e673	`Utility for assempling level 2 compressed images in PostScript`
rpm-build	01e673	`(psio.c, prog/convertfilestops.c). Enable read/write of 16 bpp,`
rpm-build	01e673	`grayscale tiff (tiffio.c, pix2.c).`
rpm-build	01e673	`New function for finding the number of c.c., which is a bit`
rpm-build	01e673	`faster than finding the b.b. or the component images (conncomp.c)`
rpm-build	01e673	`New functions for finding local extrema in grayscale image (seedfill.c)`
rpm-build	01e673
rpm-build	01e673	`1.46 28 Jun 07`
rpm-build	01e673	`Added interpreted mode for color morphology (morphseq.c).`
rpm-build	01e673	`In functions, make effort to consistently do early initialization`
rpm-build	01e673	`of ptrs to objects returned on the heap. This is to try to`
rpm-build	01e673	`avoid letting functions return uninitialized objects, even if`
rpm-build	01e673	`the return early because of bad input.`
rpm-build	01e673	`Split pixa.c into 2 files; revised the component filtering`
rpm-build	01e673	`in both pixafunc.c and boxfunc.c. Added component filtering`
rpm-build	01e673	`for "thin" components.`
rpm-build	01e673	`Added subsampling functions for numa and pta.`
rpm-build	01e673	`Word segmentation now works at both full and half resolution.`
rpm-build	01e673	`Better methods for displaying and tiling (for debugging),`
rpm-build	01e673	`using pixDisplayWrite(), pixaReadFiles() and pixaDisplayTiledAndScaled().`
rpm-build	01e673
rpm-build	01e673	`1.45 27 May 07`
rpm-build	01e673	`Further improvements of orientation and mirror flip detection`
rpm-build	01e673	`(flipdetect.c). Added 2x rank downscaling and general integer`
rpm-build	01e673	`replicative expansion (scale.c). Simplified interface for`
rpm-build	01e673	`averaging, and included tiled averaging, which is yet another`
rpm-build	01e673	`integer reduction scaling function (pix3.c).`
rpm-build	01e673
rpm-build	01e673	`1.44 1 May 07`
rpm-build	01e673	`Split pix2.c into (pix2.c, pix3.c), with basic housekeeping`
rpm-build	01e673	`functions (e.g., ops on borders, padding) in pix2.c.`
rpm-build	01e673	`Split numarray.c into (numabasic.c, numafunc.c), with`
rpm-build	01e673	`constructors and accessors in numabasic.c. Added a number`
rpm-build	01e673	`of histogram, rank value and interpolation functions to numafunc.c.`
rpm-build	01e673	`Add rms and rank difference comparison functions (compare.c).`
rpm-build	01e673	`Separated orientation and mirror flip detection; fixed the latter`
rpm-build	01e673	`(flipdetect.c).`
rpm-build	01e673
rpm-build	01e673	`1.43 24 Mar 07`
rpm-build	01e673	`New and fixed functions for handling word boxes (classapp.c)`
rpm-build	01e673	`More consistent use of L_* flags (e.g., sarray.h, morph.h)`
rpm-build	01e673	`Morphology on color images (gray ops on each component) (colormorph.c)`
rpm-build	01e673	`New methods for generating sels; we now have five methods in`
rpm-build	01e673	`sel1.c and 3 others in selgen.c. Also a function that`
rpm-build	01e673	`displays Sels as an image, for use in documentation (sel1.c)`
rpm-build	01e673	`New high-level converters, such as pixConvertTo8(), pixConvertTo32(),`
rpm-build	01e673	`pixConvertLossless() (pixconv.c)`
rpm-build	01e673	`Identify regression tests, and rename them as prog/*_reg.c.`
rpm-build	01e673	`Complete revision of plotting package (gplot.c)`
rpm-build	01e673	`New functions for comparing pix (compare.c)`
rpm-build	01e673	`New morph application functions, such as the ability to run a`
rpm-build	01e673	`morph sequence separately on selected c.c. in an image, and`
rpm-build	01e673	`a fast, quasi-tophat function (morphapp.c)`
rpm-build	01e673	`Cleanup and new interfaces to border representations of c.c. (ccbord.c)`
rpm-build	01e673	`Page segmentation application (pageseg.c)`
rpm-build	01e673	`Better serialization with version control for all major structs.`
rpm-build	01e673	`Morphological brick operations with 2-way composite sels (morph.c)`
rpm-build	01e673
rpm-build	01e673	`1.42 26 Dec 06`
rpm-build	01e673	`New sorting functions, including 2-d sorting, for boxa and pixa,`
rpm-build	01e673	`and functions that sort by index (e.g., pixa --> pixa and`
rpm-build	01e673	`for 2d, pixa --> pixaa; ditto for boxa).`
rpm-build	01e673	`New accessors for pix dimensions. A new strtokSafe() to`
rpm-build	01e673	`substitute for strtok_r (utils.c).`
rpm-build	01e673	`Page flip detection, using both rasterop and dwa morphology`
rpm-build	01e673	`(flipdetect.c), with dwa generation (fliphmtgen.c) and testing`
rpm-build	01e673	`(prog/fliptest.c).`
rpm-build	01e673	`Increased basic sels from 42 to 52 (sel2.c).`
rpm-build	01e673	`Better high-level interfaces for binary morphology with`
rpm-build	01e673	`brick (separable) sels, both for rasterop (morph.c) and for`
rpm-build	01e673	`dwa (morphdwa.c); fully tested for both asymmetric and`
rpm-build	01e673	`symmetric b.c. (prog/morphtest3.c). Faster area mapping`
rpm-build	01e673	`reduction for power-of-2 scaling.`
rpm-build	01e673
rpm-build	01e673	`1.41 5 Nov 06`
rpm-build	01e673	`Simplified morph enums, removing all unused ones (morph.h).`
rpm-build	01e673	`Added new high-level interfaces for adaptive mapping (adaptmap.c).`
rpm-build	01e673	`New method to extract color content of images (colorcontent.c).`
rpm-build	01e673	`New method to generate sels from text strings, and to identify`
rpm-build	01e673	`roman text that is not properly oriented (thanks to Adam Langley).`
rpm-build	01e673	`Fast grayscale min/max (rank) scale reduction by integer factors.`
rpm-build	01e673	`New accessors for box and sel, that should be used when possible.`
rpm-build	01e673	`Thresholding grayscale mask by bandpass (grayquant.c).`
rpm-build	01e673	`Use of strtok_r() for thread safety.`
rpm-build	01e673
rpm-build	01e673	`1.40 15 Oct 06`
rpm-build	01e673	`Fixed xtractprotos for cygwin. Minor fixes and improved documentation`
rpm-build	01e673	`(baseline.c, conncomp.c, pix2.c, morphseq.c, pts.c, numarray.c,`
rpm-build	01e673	`utils.c, skew.c). Add ability to quantize an rgb image to a`
rpm-build	01e673	`specified colormap (colorquant.c); tested in prog/cmapquanttest.c.`
rpm-build	01e673	`Modifications to allow conditional compilation on MS VC++,`
rpm-build	01e673	`and to allow I/O calls to be stubbed out (new files: *iostub.c,`
rpm-build	01e673	`zlibmemstub.c, pstdint.h, arrayaccess.h.ms60)`
rpm-build	01e673
rpm-build	01e673	`1.39 31 Aug 06`
rpm-build	01e673	`\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|`
rpm-build	01e673	`NOTE CAREFULLY: There has been an interface change to make`
rpm-build	01e673	`affine, bilinear and projective transforms more general.`
rpm-build	01e673	`The implementation has been changed to allow them to handle`
rpm-build	01e673	`all image types and to make them faster (esp. with both sampled`
rpm-build	01e673	`and interpolated mapping on color images).`
rpm-build	01e673	`\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|`
rpm-build	01e673	`Added prog/Makefile.mingw to build executables. This is still`
rpm-build	01e673	`in a relatively raw state. It is necessary to download`
rpm-build	01e673	`gnuwin32 packages for 4 libraries (jpeg, png, zlib, tiff)`
rpm-build	01e673	`to link with leptonlib and the main, and I still have not`
rpm-build	01e673	`been able to build static executables (they require jpeg2b.dll, etc.).`
rpm-build	01e673
rpm-build	01e673	`1.38 8 Aug 06`
rpm-build	01e673	`\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|`
rpm-build	01e673	`NOTE CAREFULLY: There has been an interface change to both`
rpm-build	01e673	`simplify and generalize the grayscale morphology operations:`
rpm-build	01e673	`pixErodeGray(), pixDilateGray(), pixOpenGray(),`
rpm-build	01e673	`pixCloseGray(), pixTophat() and pixMorphGradient().`
rpm-build	01e673	`The prototypes are not changed; old code will compile, but`
rpm-build	01e673	`it will be wrong! The old interface had a size and a type`
rpm-build	01e673	`(horizontal, vertical, square). The new interface takes`
rpm-build	01e673	`horizontal and vertical Sel dimensions.`
rpm-build	01e673	`\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|\|`
rpm-build	01e673	`For cross-compilation to make windows programs, you can use`
rpm-build	01e673	`src/Makefile.mingw to make a windows version of the library.`
rpm-build	01e673	`6x scale-to-gray function donated by Alberto Accomazzi.`
rpm-build	01e673	`Interpreter added for sequence of grayscale morphological`
rpm-build	01e673	`operations, including the tophat (morphseq.c).`
rpm-build	01e673	`Pixacc container added to simplify the interface`
rpm-build	01e673	`for accumulator arithmetic using Pix.`
rpm-build	01e673	`Removed fmorph.c and fmorphlow.c from the library. These are`
rpm-build	01e673	`very limited and were deprecated in favor of fmorphauto(), which`
rpm-build	01e673	`autogens the code from (nearly) any Sel.`
rpm-build	01e673	`Fixed some of the gray morphology operations, which had errors`
rpm-build	01e673	`on the boundary. All gray morph ops should now be rigorously`
rpm-build	01e673	`OK (graymorph.c). For testing of graymorph dualities, the`
rpm-build	01e673	`the graymorph interpreter, etc., see prog/morphgraytest.c.`
rpm-build	01e673
rpm-build	01e673	`1.37 10 Jul 06`
rpm-build	01e673	`[After v.36 was released, Jeff Breidenbach built a Debian`
rpm-build	01e673	`distribution of Leptonica based on v.36, and you can now get Leptonica`
rpm-build	01e673	`as a Debian package. Use "apt-cache search leptonica" to see`
rpm-build	01e673	`what is available.] The libraries are now combined into a single`
rpm-build	01e673	`library (liblept.a, liblept.so) and the function prototypes are`
rpm-build	01e673	`also in a single file (leptprotos.h). cextract was found not`
rpm-build	01e673	`to work on recent versions of linux that support 64 bit data types,`
rpm-build	01e673	`and it is no longer distributed with leptonica. Instead, I wrote`
rpm-build	01e673	`a prototype extractor in leptonica (xtractprotos). When you`
rpm-build	01e673	`'make allprotos', it now uses this program. The shared libraries`
rpm-build	01e673	`now have major and minor numbers corresponding to the version.`
rpm-build	01e673
rpm-build	01e673	`1.36 17 Jun 06`
rpm-build	01e673	`Line graphics generation (graphics.c) reorganized; separated out pta`
rpm-build	01e673	`generation from rendering. Can now render with alpha blending.`
rpm-build	01e673	`Examples of use are given in prog/graphicstest.c.`
rpm-build	01e673	`Sort functions for basic geometrical objects now have the option`
rpm-build	01e673	`of returning a numa giving the sort order on the original array.`
rpm-build	01e673	`The pixa sort can sort with either clones or copies of the pix.`
rpm-build	01e673
rpm-build	01e673	`1.35 21 May 06`
rpm-build	01e673	`The efficiency of the multipage jbig unsupervised classifier is`
rpm-build	01e673	`significantly improved due to a NumaHash struture implemented`
rpm-build	01e673	`by Adam Langley. Functions for computing runlength in 1 bpp`
rpm-build	01e673	`images have been added.`
rpm-build	01e673
rpm-build	01e673	`1.34 7 May 06`
rpm-build	01e673	`Completely rewrote the jbig unsupervised classifier.`
rpm-build	01e673	`It now works on multiple pages, and is more accurate in performing`
rpm-build	01e673	`visually lossless substitutions. You can classify by connected`
rpm-build	01e673	`components, characters, or words. The old data structures`
rpm-build	01e673	`and interfaces have been removed. New unpackers from 1 to 2 and`
rpm-build	01e673	`1 to 4 bpp, with and without colormaps in the dest.`
rpm-build	01e673
rpm-build	01e673	`1.33 18 Mar 06`
rpm-build	01e673	`Generalized color snap to have different src and target colors,`
rpm-build	01e673	`and to include colormaps (blend.c). Distribute into root directory`
rpm-build	01e673	`that specifies the version number (e.g., 1.33). Add color`
rpm-build	01e673	`space conversion between rgb and hsv. Re-bundle thresholding`
rpm-build	01e673	`code from (binarize.c, dibitize.c) to grayquant*.c.`
rpm-build	01e673	`pixThreshold8() now also quantizes 8 bpp --> 8 bpp.`
rpm-build	01e673	`High-level pixRotate() that optionally expands image sufficiently`
rpm-build	01e673	`so that no pixels are lost in any sequence of rotations (rotate.c).`
rpm-build	01e673	`Generalize shear to specify color of pixels brought in, including`
rpm-build	01e673	`for in-place operation (shear.c, rotateshear.c). Faster version of`
rpm-build	01e673	`color rotation by area mapping, both about center and about UL corner.`
rpm-build	01e673	`You can now use the standard color rotator (pixRotateAM) and get`
rpm-build	01e673	`nearly the same speed as with the "Fast" one.`
rpm-build	01e673
rpm-build	01e673	`1.32 4 Feb 06`
rpm-build	01e673	`Ability to specify a sequence of binary morphological`
rpm-build	01e673	`(& binary reduction/expansion) operations in a single`
rpm-build	01e673	`function (morphseq.c). Fast downscaling combined with conversion`
rpm-build	01e673	`from rbg to gray and to binary (scale.c). Utility for`
rpm-build	01e673	`segmenting images by color (colorseg.c).`
rpm-build	01e673
rpm-build	01e673	`1.31 7 Jan 06`
rpm-build	01e673	`Remove more complicated functions that threshold to 2 bpp,`
rpm-build	01e673	`retaining the simplest interface. Retest all thresholding and`
rpm-build	01e673	`dithering. Add "ascii" write of PNM. Improve graphics writing`
rpm-build	01e673	`of lines; generalize to colormaps. New colorization functions`
rpm-build	01e673	`(paintcmap.c, blend.c).`
rpm-build	01e673
rpm-build	01e673	`1.30 22 Dec 05`
rpm-build	01e673	`Remove most instances of fprintf(stderr, ...), except within`
rpm-build	01e673	`DEBUG or encapsulated in error, warning or info macros.`
rpm-build	01e673	`As a result, there is no output to stderr if NO_CONSOLE_IO is defined.`
rpm-build	01e673	`Adaptive mapping to make bg uniform (adaptmap.c). A few bug fixes.`
rpm-build	01e673	`New PostScript output functions for embedding PS files`
rpm-build	01e673	`(prog/converttops). Generalized some image enhancement functions.`
rpm-build	01e673	`New functions for generating hit-miss sels.`
rpm-build	01e673
rpm-build	01e673	`1.29 12 Nov 05`
rpm-build	01e673	`More flexible blending of two images, with and without colormaps`
rpm-build	01e673	`(see blend.c). Painting colormapped images through masks, etc`
rpm-build	01e673	`(see paintcmap.c). More flexible interface for gamma and`
rpm-build	01e673	`contrast enhancement (see enhance.c).`
rpm-build	01e673
rpm-build	01e673	`1.28 8 Oct 05`
rpm-build	01e673	`Removed all pix colormaps for 1 bpp. Allow programmatic resetting`
rpm-build	01e673	`of binary morphology boundary conditions. Added (yet) another`
rpm-build	01e673	`simple octcube color quantizer. New colormap operations.`
rpm-build	01e673
rpm-build	01e673	`1.27 24 Sep 05`
rpm-build	01e673	`Renamed many of the enums and typedefs to avoid namespace`
rpm-build	01e673	`collisions. This includes structs and typedefs for BMP.`
rpm-build	01e673	`Interface change to pixClipRectangle(); apologies to everyone`
rpm-build	01e673	`whose code is broken by these changes -- I hope it's worth it.`
rpm-build	01e673	`Removed colormap.h; simplified all colormap usage, hiding details`
rpm-build	01e673	`from all but a few colormap functions. Am now saving file format`
rpm-build	01e673	`in the pix when an image is read, and can by default write`
rpm-build	01e673	`out in this format. Resolution info added for jpeg and png.`
rpm-build	01e673	`Added L_INFO* macros and l_info* fctns for printing`
rpm-build	01e673	`(e.g., debugging) info. Suggestions and code kindly`
rpm-build	01e673	`supplied by Dave Bryan, who helped solve compatibility issues`
rpm-build	01e673	`with MINGW32 (e.g., in timing and directory functions).`
rpm-build	01e673	`Added some blending and linear TRC functions.`
rpm-build	01e673	`Generalized pixEqual() to include all cases with and without`
rpm-build	01e673	`colormaps. New regression tests in prog: ioformats, equaltest.`
rpm-build	01e673
rpm-build	01e673	`1.26 24 Jul 05`
rpm-build	01e673	`Generalized affine pointwise to do interpolation as well as`
rpm-build	01e673	`sampling. For both projective and bilinear transforms,`
rpm-build	01e673	`implemented using both sampling and interpolation.`
rpm-build	01e673	`Added function to remove keystoning by computing the necessary`
rpm-build	01e673	`projective transform and doing it. Also find baselines in text images.`
rpm-build	01e673	`Added downscaling using accurate area-mapping over subpixels.`
rpm-build	01e673
rpm-build	01e673	`1.25 25 Jun 05`
rpm-build	01e673	`Better endian conversion fctns for 2 and 4 byte words.`
rpm-build	01e673	`Remove colormaps before converting by thresholds.`
rpm-build	01e673	`Added functions to read header parameters for png and tiff.`
rpm-build	01e673
rpm-build	01e673	`1.24 5 Jun 05`
rpm-build	01e673	`Added image splitting to allow printing in tiles (as several pages).`
rpm-build	01e673	`Added new octree quantization function to generate 4 and 8 bpp`
rpm-build	01e673	`colormapped output (not dithered). Fixed bmp resolution.`
rpm-build	01e673	`Added new flag for colormap removal (using dest depth based on`
rpm-build	01e673	`src colormap). Added I/O tests (prog/ioformats.c)`
rpm-build	01e673
rpm-build	01e673	`1.23 10 Apr 05`
rpm-build	01e673	`Added thresholding from 8 bpp to 2 and 4 bpp, allowing specification`
rpm-build	01e673	`of both the number of output levels and whether or not a colormap`
rpm-build	01e673	`is made.`
rpm-build	01e673
rpm-build	01e673	`1.22 27 Mar 05`
rpm-build	01e673	`Add pointer queue facility. To demonstrate it, you can now`
rpm-build	01e673	`generate a binary maze using a cellular automaton and find`
rpm-build	01e673	`the shortest path between two points in the maze. Add heap`
rpm-build	01e673	`of pointers (keyed on the first field), which is used to`
rpm-build	01e673	`implement a priority queue. This is applied to search for`
rpm-build	01e673	`a "least cost" path on a grayscale image (a generalization`
rpm-build	01e673	`of a binary maze).`
rpm-build	01e673
rpm-build	01e673	`1.21 28 Feb 05`
rpm-build	01e673	`Read/write of colormaps to file. For gplot, add a new`
rpm-build	01e673	`latex output terminal. Bring ptrs into 21st century by`
rpm-build	01e673	`including stdint.h, and using uintptr_t for the ptr address`
rpm-build	01e673	`arithmetic in arrayaccess.*. This seems to be OK back to`
rpm-build	01e673	`RH 7.0, but if you run into trouble with an earlier`
rpm-build	01e673	`C compiler, let me know. Also, use enums for global`
rpm-build	01e673	`constants whenever possible, and qualify named constants`
rpm-build	01e673	`(e.g., ADD --> ARITH_ADD, HORIZ --> MORPH_HORIZ) to avoid`
rpm-build	01e673	`possible interactions with other libraries.`
rpm-build	01e673
rpm-build	01e673	`1.20 31 Jan 05`
rpm-build	01e673	`Speed up of tiffio and pngio with byte swap generating new pix.`
rpm-build	01e673	`In textops.c, ability to split string into paragraphs,`
rpm-build	01e673	`in preparation for more general typesetting.`
rpm-build	01e673	`Automatic hit-miss Sel generation for pattern matching.`
rpm-build	01e673	`Fast downscaling using a lowpass filter and subsampling.`
rpm-build	01e673	`Generalization of several grayscale and color operations`
rpm-build	01e673	`to work on colormapped images. Improved scale-to-gray and`
rpm-build	01e673	`scaling reduction operations to be antialiased for best results.`
rpm-build	01e673
rpm-build	01e673	`1.19 30 Nov 04`
rpm-build	01e673	`Additions to fileIO: (1) new jpeg reading options, such as`
rpm-build	01e673	`returning warnings and scaled raster; (2) ability to write`
rpm-build	01e673	`custom tiff flags. Better tiling functions.`
rpm-build	01e673	`Edge extraction, both with grayscale morphology`
rpm-build	01e673	`and clipped convolution filters. More general painting`
rpm-build	01e673	`through a binary mask: pixSetMaskedGeneral().`
rpm-build	01e673	`Unpacking from binary to 8, 16 and 32 bpp. Thresholding`
rpm-build	01e673	`and dithering from 8 bpp to 2 bpp ("dibitization"). New bitmap`
rpm-build	01e673	`font facility, using a single rendered font in a variety of`
rpm-build	01e673	`sizes: allows painting the text on an image (binary, gray, RGB).`
rpm-build	01e673	`(People have asked for the ability to write text on images).`
rpm-build	01e673
rpm-build	01e673	`1.18 25 Aug 04`
rpm-build	01e673	`Changed typedefs of built-in types to avoid possible conflicts.`
rpm-build	01e673	`Cleaned up and tested all programs in the prog directory.`
rpm-build	01e673	`Simplified and fixed the pixSetMasked() and pixCombineMasked()`
rpm-build	01e673	`functions.`
rpm-build	01e673
rpm-build	01e673	`1.17 31 May 04`
rpm-build	01e673	`Implemented distance function for 16 bpp. We can now generate`
rpm-build	01e673	`out 16 bpp PNG. Simple programs for generating PS from a`
rpm-build	01e673	`directory of g4tiff or jpeg images. Changed implementation of`
rpm-build	01e673	`erosion to allow either asymmetric or symmetric boundary conditions.`
rpm-build	01e673	`The distinction is described on the binary morphology web page.`
rpm-build	01e673	`Allow read/write of multipage TIFF files. Implemented`
rpm-build	01e673	`read/write of PNM files.`
rpm-build	01e673
rpm-build	01e673	`1.16 31 Mar 04`
rpm-build	01e673	`New depth conversion functions, improved conversion to false color,`
rpm-build	01e673	`new contour rendering (onto 1 bpp or onto the src grayscale image),`
rpm-build	01e673	`new orthogonal rotations, better interface for doing arithmetic`
rpm-build	01e673	`on 2-d arrays using a pix, improved distance function.`
rpm-build	01e673
rpm-build	01e673	`1.15 31 Jan 04`
rpm-build	01e673	`Fast interpolated color rotation with 4x4 subpixels; has`
rpm-build	01e673	`nearly the accuracy of the slower method using 16x16 subpixels.`
rpm-build	01e673	`Demonstration of line removal from grayscale sketch in`
rpm-build	01e673	`prog/lineremoval.c. Conversion of grayscale to false color.`
rpm-build	01e673	`Fixed shear and rotation functions to handle angle = 0.0 properly.`
rpm-build	01e673	`Other small fixes and interface improvements.`
rpm-build	01e673
rpm-build	01e673	`1.14 30 Nov 03`
rpm-build	01e673	`Small implementation changes to list.c. Better sorting`
rpm-build	01e673	`routines for number arrays (numa), plus sorting for box`
rpm-build	01e673	`arrays (boxa) and pix arrays (pixa). PostScript wrapper`
rpm-build	01e673	`for jpeg. Better handling of colormaps, and a simple`
rpm-build	01e673	`function to convert an RGB pix with not more than 256`
rpm-build	01e673	`colors to the smallest colormapped pix. PS output wrappers`
rpm-build	01e673	`for JFIF JPEG and TIFF G4 files. Comments compatible`
rpm-build	01e673	`with doxygen for automatic documentation.`
rpm-build	01e673
rpm-build	01e673	`1.13 31 Oct 03`
rpm-build	01e673	`Cleaned up documentation in src. Made libraries and test programs`
rpm-build	01e673	`ANSI C++ compliant. Added special cases to rasterops for`
rpm-build	01e673	`alignment to word boundaries. Fixed pngio.c to work with`
rpm-build	01e673	`most recent libpng (1.2.5).`
rpm-build	01e673
rpm-build	01e673	`1.12 30 Jun 03`
rpm-build	01e673	`Implemented border chain representation from a binary image,`
rpm-build	01e673	`writes/reads a compressed version, and renders the original`
rpm-build	01e673	`image back from the borders. Also writes outline file out`
rpm-build	01e673	`in svg format. Number arrays (numa) and point arrays (pta)`
rpm-build	01e673	`are also extended to 2nd level arrays (numaa, ptaa).`
rpm-build	01e673	`Serialized I/O for boxa, pta, and pixa.`
rpm-build	01e673
rpm-build	01e673	`1.11 31 May 03`
rpm-build	01e673	`Implemented generic list handling, for doubly-linked`
rpm-build	01e673	`list cons cells and arbitrary objects.`
rpm-build	01e673
rpm-build	01e673	`1.10 14 Apr 03`
rpm-build	01e673	`Implemented simple image enhancements in gray and color:`
rpm-build	01e673	`gamma correction, contrast enhancement, unsharp masking.`
rpm-build	01e673	`Extended smoothing via block convolution to color.`
rpm-build	01e673	`Implemented auto-gen'd DWA version of hit-miss transform;`
rpm-build	01e673	`the code for generating these hmt routines is very similar to`
rpm-build	01e673	`that for DWA auto-gen'd erosion and dilation.`
rpm-build	01e673
rpm-build	01e673	`1.9 28 Feb 03`
rpm-build	01e673	`Implemented a safe, expandable byte queue. As an example of`
rpm-build	01e673	`its use, implemented memory-to-memory compression and decompression`
rpm-build	01e673	`using zlib. Generalized PS write to include RGB color.`
rpm-build	01e673	`Implemented a method to find image skew.`
rpm-build	01e673
rpm-build	01e673	`1.8 31 Jan 03`
rpm-build	01e673	`Implemented a simple 1-pass color quantization with dithering,`
rpm-build	01e673	`and improved the 2-pass octree color quantization.`
rpm-build	01e673	`Documented with an application page, that includes jbig2.`
rpm-build	01e673	`Added new general sampling operations and made a table`
rpm-build	01e673	`that summarizes the available scaling operations.`
rpm-build	01e673
rpm-build	01e673	`1.7 31 Dec 02`
rpm-build	01e673	`Added pixHtmlViewer(), a formatter that allows portable viewing of`
rpm-build	01e673	`a set of images (like a slide show) in a browser.`
rpm-build	01e673	`Implemented better octree color quantization, with variable`
rpm-build	01e673	`number of colors, pruning the octree for good color clusters,`
rpm-build	01e673	`and fast traversal for pixel assignment to colormap.`
rpm-build	01e673
rpm-build	01e673	`1.6 30 Nov 02`
rpm-build	01e673	`Generalized shear and shear rotation to arbitrary locations`
rpm-build	01e673	`about which the operation is performed. Implemented in-place`
rpm-build	01e673	`translation using pixRasteropIP(). Implemented arbitrary`
rpm-build	01e673	`affine transform of image two ways: pointwise and sequential.`
rpm-build	01e673	`Added binarization by error diffusion. Added simple color`
rpm-build	01e673	`quantization by octree.`
rpm-build	01e673
rpm-build	01e673	`1.5 31 Oct 02`
rpm-build	01e673	`Put jpeglib.h in local directory. This, along with the jmorecfg.h`
rpm-build	01e673	`file there prevents compiler warnings about redefined typedefs.`
rpm-build	01e673	`Compiled everything with g++ to make strictly ansi C compatible.`
rpm-build	01e673	`Added interface gplotFromFile() for simple file-based plotting with`
rpm-build	01e673	`gnuplot 3.7.2. Added functions to convert 2, 4 and 8 bpp`
rpm-build	01e673	`color-mapped (i.e., palletted) images to 24 bpp color or`
rpm-build	01e673	`8 bpp grayscale. Added several jbig2 application cores that`
rpm-build	01e673	`only require a simple wrapper to make into programs.`
rpm-build	01e673
rpm-build	01e673	`1.4 30 Sep 02`
rpm-build	01e673	`Added interface to gnuplot 3.7.2 and to x11 display of images.`
rpm-build	01e673	`Added new functions with arrays of images for use in applications`
rpm-build	01e673	`such as jbig2 encoders, along with a simple jbig2 implementation`
rpm-build	01e673	`using either hausdorff or correlation scoring. Added centroid`
rpm-build	01e673	`finder for images. For accessing image arrays from arrays of`
rpm-build	01e673	`image arrays, added a "new reference" (NEW_REF) flag, with a`
rpm-build	01e673	`ref count attached to the array. Added power-of-2 binary`
rpm-build	01e673	`expansion and reduction.`
rpm-build	01e673
rpm-build	01e673	`1.3 30 Jun 02`
rpm-build	01e673	`Extended connected components to 8. Added morphological`
rpm-build	01e673	`operations tophat and hdome, along with clipped arithmetic`
rpm-build	01e673	`operators on grayscale images. Fixed memory error in`
rpm-build	01e673	`rasteropGeneralLow() that was found using valgrind.`
rpm-build	01e673	`Tested most operations with valgrind for memory errors.`
rpm-build	01e673	`Replaced integer arrays with number arrays, to include floats.`
rpm-build	01e673	`Added arithmetic functions on grayscale images.`
rpm-build	01e673
rpm-build	01e673	`1.2 30 May 02`
rpm-build	01e673	`Added connected component utility, stack utility, pix arrays,`
rpm-build	01e673	`line drawing and seed filling. Binary reconstruction,`
rpm-build	01e673	`both morphological and raster-oriented, are now supported`
rpm-build	01e673	`for 4 and 8 connected fills. Added the distance function`
rpm-build	01e673	`on binary images, grayscale reconstruction, and grayscale`
rpm-build	01e673	`morphology using the Gil-Werman method.`
rpm-build	01e673
rpm-build	01e673	`1.1 30 Apr 02`
rpm-build	01e673	`Added orthogonal rotations, binary scaling, PS output,`
rpm-build	01e673	`binary reconstruction, integer arrays, structuring element`
rpm-build	01e673	`input/output.`
rpm-build	01e673
rpm-build	01e673	`1.0 25 Feb 02`
rpm-build	01e673	`Initial distribution, with rasterops, binary morphology (two`
rpm-build	01e673	`implementations: rasterops and dwa), affine transforms`
rpm-build	01e673	`(translation, shear, scaling, rotation), fast convolution,`
rpm-build	01e673	`and basic i/o (BMP, PNG and JPEG).`
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673
rpm-build	01e673	`<form>`
rpm-build	01e673	`<center>`
rpm-build	01e673	`<input type="button" onclick="window.close();" value="Close this window">`
rpm-build	01e673	`</center>`
rpm-build	01e673	`</form>`
rpm-build	01e673	`----- JS Window Closer -->`
rpm-build	01e673
rpm-build	01e673	`</body>`
rpm-build	01e673	`</html>`
rpm-build	01e673

source-git / leptonica

Source Code

Blame version-notes.html

Version Notes for Leptonica

19 Apr 2018