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<html lang="en">
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<head>
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<title>TIFF 6.0 Specification Coverage</title>
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<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
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<meta http-equiv="content-language" content="en">
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<style type="text/css">
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th {text-align: left; vertical-align: top; font-style: italic; font-weight: normal}
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-->
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</style>
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</head>
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<body lang="en" text="#000000" bgcolor="#ffffff" link="#0000ff" alink="#0000ff" vlink="#0000ff">
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TIFF 6.0 Specification Coverage
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The library is capable of dealing with images that are written to
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follow the 5.0 or 6.0 TIFF spec. There is also considerable support
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for some of the more esoteric portions of the 6.0 TIFF spec.
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Core requirements
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Both <tt>"MM"</tt> and <tt>"II"</tt> byte orders are handled.
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Both packed and separated planar configuration of samples.
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Any number of samples per pixel (memory permitting).
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Any image width and height (memory permitting).
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Multiple subfiles can be read and written.
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Editing is not supported in that related subfiles (e.g.
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a reduced resolution version of an image) are not automatically
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updated.
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Tags handled: <tt>ExtraSamples</tt>, <tt>ImageWidth</tt>,
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<tt>ImageLength</tt>, <tt>NewSubfileType</tt>, <tt>ResolutionUnit</tt>.
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<tt>Rowsperstrip</tt>, <tt>StripOffsets</tt>, <tt>StripByteCounts</tt>,
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<tt>XResolution</tt>, <tt>YResolution</tt>
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Tiled Images
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<tt>TileWidth</tt>, <tt>TileLength</tt>, <tt>TileOffsets</tt>,
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<tt>TileByteCounts</tt>
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Image Colorimetry Information
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<tt>WhitePoint</tt>, <tt>PrimaryChromaticities</tt>, <tt>TransferFunction</tt>,
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<tt>ReferenceBlackWhite</tt>
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Class B for bilevel images
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<tt>SamplesPerPixel</tt> = 1
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<tt>BitsPerSample</tt> = 1
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<tt>Compression</tt> = 1 (none), 2 (CCITT 1D), or 32773 (PackBits)
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<tt>PhotometricInterpretation</tt> = 0 (Min-is-White), 1 (Min-is-Black)
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Class G for grayscale images
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<tt>SamplesPerPixel</tt> = 1
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<tt>BitsPerSample</tt> = 4, 8
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<tt>Compression</tt> = 1 (none) 5 (LZW)
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<tt>PhotometricInterpretation</tt> = 0 (Min-is-White), 1 (Min-is-Black)
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Class P for palette color images
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<tt>SamplesPerPixel</tt> = 1
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<tt>BitsPerSample</tt> = 1-8
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<tt>Compression</tt> = 1 (none) 5 (LZW)
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<tt>PhotometricInterpretation</tt> = 3 (Palette RGB)
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<tt>ColorMap</tt>
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Class R for RGB full color images
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<tt>SamplesPerPixel</tt> = 3
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<tt>BitsPerSample</tt> = <8,8,8>
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<tt>PlanarConfiguration</tt> = 1, 2
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<tt>Compression</tt> = 1 (none) 5 (LZW)
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<tt>PhotometricInterpretation</tt> = 2 (RGB)
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Class F for facsimile
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(Class B tags plus...)
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<tt>Compression</tt> = 3 (CCITT Group 3), 4 (CCITT Group 4)
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<tt>FillOrder</tt> = 1 (MSB), 2 (LSB)
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<tt>Group3Options</tt> = 1 (2d encoding), 4 (zero fill), 5 (2d+fill)
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<tt>ImageWidth</tt> = 1728, 2048, 2482
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<tt>NewSubFileType</tt> = 2
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<tt>ResolutionUnit</tt> = 2 (Inch), 3 (Centimeter)
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<tt>PageNumber</tt>,
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<tt>XResolution</tt>,
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<tt>YResolution</tt>,
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<tt>Software</tt>,
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<tt>BadFaxLines</tt>,
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<tt>CleanFaxData</tt>,
|
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<tt>ConsecutiveBadFaxLines</tt>,
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<tt>DateTime</tt>,
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<tt>DocumentName</tt>,
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<tt>ImageDescription</tt>,
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<tt>Orientation</tt>
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Class S for separated images
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<tt>SamplesPerPixel</tt> = 4
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<tt>PlanarConfiguration</tt> = 1, 2
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<tt>Compression</tt> = 1 (none), 5 (LZW)
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<tt>PhotometricInterpretation</tt> = 5 (Separated)
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<tt>InkSet</tt> = 1 (CMYK)
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<tt>DotRange</tt>,
|
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<tt>InkNames</tt>,
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<tt>DotRange</tt>,
|
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<tt>TargetPrinter</tt>
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Class Y for YCbCr images
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<tt>SamplesPerPixel</tt> = 3
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<tt>BitsPerSample</tt> = <8,8,8>
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<tt>PlanarConfiguration</tt> = 1, 2
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<tt>Compression</tt> = 1 (none), 5 (LZW), 7 (JPEG)
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<tt>PhotometricInterpretation</tt> = 6 (YCbCr)
|
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<tt>YCbCrCoefficients</tt>,
|
|
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<tt>YCbCrSubsampling</tt>,
|
|
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<tt>YCbCrPositioning</tt>
|
|
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(colorimetry info from Appendix H; see above)
|
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Packit |
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Packit |
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Packit |
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Class "JPEG" for JPEG images (per TTN2)
|
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<tt>PhotometricInterpretation</tt> = 1 (grayscale), 2 (RGB), 5 (CMYK), 6 (YCbCr)
|
|
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(Class Y tags if YCbCr)
|
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(Class S tags if CMYK)
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<tt>Compression</tt> = 7 (JPEG)
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In addition, the library supports some optional compression algorithms
|
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that are, in some cases, of dubious value.
|
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Compression tag valueCompression algorithm
|
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32766NeXT 2-bit encoding
|
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32809ThunderScan 4-bit encoding
|
|
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32909Pixar companded 11-bit ZIP encoding
|
|
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32946PKZIP-style Deflate encoding (experimental)
|
|
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34676SGI 32-bit Log Luminance encoding (experimental)
|
|
Packit |
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34677SGI 24-bit Log Luminance encoding (experimental)
|
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Note that there is no support for the JPEG-related tags defined
|
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in the 6.0 specification; the JPEG support is based on the post-6.0
|
|
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proposal given in TIFF Technical Note #2.
|
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For more information on the experimental Log Luminance encoding
|
|
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consult the materials available at
|
|
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http://www.anyhere.com/gward/pixformat/tiffluv.html.
|
|
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The following table shows the tags that are recognized
|
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and how they are used by the library. If no use is indicated,
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|
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then the library reads and writes the tag, but does not use it internally.
|
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Packit |
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Tag Name
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Packit |
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Value
|
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Packit |
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R/W
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Packit |
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Library's Use (Comments)
|
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Packit |
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Packit |
7838c8 |
|
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Packit |
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<tt>NewSubFileType</tt>
|
|
Packit |
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254
|
|
Packit |
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R/W
|
|
Packit |
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none (called <tt>SubFileType</tt> in <tiff.h>)
|
|
Packit |
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|
|
Packit |
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|
|
Packit |
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<tt>SubFileType</tt>
|
|
Packit |
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255
|
|
Packit |
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R/W
|
|
Packit |
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none (called <tt>OSubFileType</tt> in <tiff.h>)
|
|
Packit |
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|
|
Packit |
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|
|
Packit |
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<tt>ImageWidth</tt>
|
|
Packit |
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256
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
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lots
|
|
Packit |
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|
|
Packit |
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|
|
Packit |
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<tt>ImageLength</tt>
|
|
Packit |
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257
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
lots
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
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<tt>BitsPerSample</tt>
|
|
Packit |
7838c8 |
258
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
lots
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
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<tt>Compression</tt>
|
|
Packit |
7838c8 |
259
|
|
Packit |
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R/W
|
|
Packit |
7838c8 |
to select appropriate codec
|
|
Packit |
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|
|
Packit |
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|
|
Packit |
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<tt>PhotometricInterpretation</tt>
|
|
Packit |
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262
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
lots
|
|
Packit |
7838c8 |
|
|
Packit |
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|
|
Packit |
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<tt>Thresholding</tt>
|
|
Packit |
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263
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
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<tt>CellWidth</tt>
|
|
Packit |
7838c8 |
264
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
parsed but ignored
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
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<tt>CellLength</tt>
|
|
Packit |
7838c8 |
265
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
parsed but ignored
|
|
Packit |
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|
|
Packit |
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|
|
Packit |
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<tt>FillOrder</tt>
|
|
Packit |
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266
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
control bit order
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
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<tt>DocumentName</tt>
|
|
Packit |
7838c8 |
269
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
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<tt>ImageDescription</tt>
|
|
Packit |
7838c8 |
270
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
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<tt>Make</tt>
|
|
Packit |
7838c8 |
271
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>Model</tt>
|
|
Packit |
7838c8 |
272
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>StripOffsets</tt>
|
|
Packit |
7838c8 |
273
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
data i/o
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>Orientation</tt>
|
|
Packit |
7838c8 |
274
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>SamplesPerPixel</tt>
|
|
Packit |
7838c8 |
277
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
lots
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>RowsPerStrip</tt>
|
|
Packit |
7838c8 |
278
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
data i/o
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>StripByteCounts</tt>
|
|
Packit |
7838c8 |
279
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
data i/o
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>MinSampleValue</tt>
|
|
Packit |
7838c8 |
280
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>MaxSampleValue</tt>
|
|
Packit |
7838c8 |
281
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>XResolution</tt>
|
|
Packit |
7838c8 |
282
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>YResolution</tt>
|
|
Packit |
7838c8 |
283
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
used by Group 3 2d encoder
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>PlanarConfiguration</tt>
|
|
Packit |
7838c8 |
284
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
data i/o
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>PageName</tt>
|
|
Packit |
7838c8 |
285
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>XPosition</tt>
|
|
Packit |
7838c8 |
286
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>YPosition</tt>
|
|
Packit |
7838c8 |
286
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>FreeOffsets</tt>
|
|
Packit |
7838c8 |
288
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
parsed but ignored
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>FreeByteCounts</tt>
|
|
Packit |
7838c8 |
289
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
parsed but ignored
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>GrayResponseUnit</tt>
|
|
Packit |
7838c8 |
290
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
parsed but ignored
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>GrayResponseCurve</tt>
|
|
Packit |
7838c8 |
291
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
parsed but ignored
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>Group3Options</tt>
|
|
Packit |
7838c8 |
292
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
used by Group 3 codec
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>Group4Options</tt>
|
|
Packit |
7838c8 |
293
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>ResolutionUnit</tt>
|
|
Packit |
7838c8 |
296
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
used by Group 3 2d encoder
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>PageNumber</tt>
|
|
Packit |
7838c8 |
297
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>ColorResponseUnit</tt>
|
|
Packit |
7838c8 |
300
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
parsed but ignored
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>TransferFunction</tt>
|
|
Packit |
7838c8 |
301
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>Software</tt>
|
|
Packit |
7838c8 |
305
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>DateTime</tt>
|
|
Packit |
7838c8 |
306
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>Artist</tt>
|
|
Packit |
7838c8 |
315
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>HostComputer</tt>
|
|
Packit |
7838c8 |
316
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>Predictor</tt>
|
|
Packit |
7838c8 |
317
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
used by LZW codec
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>WhitePoint</tt>
|
|
Packit |
7838c8 |
318
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>PrimaryChromacities</tt>
|
|
Packit |
7838c8 |
319
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>ColorMap</tt>
|
|
Packit |
7838c8 |
320
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>TileWidth</tt>
|
|
Packit |
7838c8 |
322
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
data i/o
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>TileLength</tt>
|
|
Packit |
7838c8 |
323
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
data i/o
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>TileOffsets</tt>
|
|
Packit |
7838c8 |
324
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
data i/o
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>TileByteCounts</tt>
|
|
Packit |
7838c8 |
324
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
data i/o
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>BadFaxLines</tt>
|
|
Packit |
7838c8 |
326
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>CleanFaxData</tt>
|
|
Packit |
7838c8 |
327
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>ConsecutiveBadFaxLines</tt>
|
|
Packit |
7838c8 |
328
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>SubIFD</tt>
|
|
Packit |
7838c8 |
330
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
subimage descriptor support
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>InkSet</tt>
|
|
Packit |
7838c8 |
332
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>InkNames</tt>
|
|
Packit |
7838c8 |
333
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>DotRange</tt>
|
|
Packit |
7838c8 |
336
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>TargetPrinter</tt>
|
|
Packit |
7838c8 |
337
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>ExtraSamples</tt>
|
|
Packit |
7838c8 |
338
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
lots
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>SampleFormat</tt>
|
|
Packit |
7838c8 |
339
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>SMinSampleValue</tt>
|
|
Packit |
7838c8 |
340
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>SMaxSampleValue</tt>
|
|
Packit |
7838c8 |
341
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>JPEGTables</tt>
|
|
Packit |
7838c8 |
347
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
used by JPEG codec
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>YCbCrCoefficients</tt>
|
|
Packit |
7838c8 |
529
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
used by <tt>TIFFReadRGBAImage</tt> support
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>YCbCrSubsampling</tt>
|
|
Packit |
7838c8 |
530
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
tile/strip size calculations
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>YCbCrPositioning</tt>
|
|
Packit |
7838c8 |
531
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>ReferenceBlackWhite</tt>
|
|
Packit |
7838c8 |
532
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>Matteing</tt>
|
|
Packit |
7838c8 |
32995
|
|
Packit |
7838c8 |
R
|
|
Packit |
7838c8 |
none (obsoleted by <tt>ExtraSamples</tt> tag)
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>DataType</tt>
|
|
Packit |
7838c8 |
32996
|
|
Packit |
7838c8 |
R
|
|
Packit |
7838c8 |
none (obsoleted by <tt>SampleFormat</tt> tag)
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>ImageDepth</tt>
|
|
Packit |
7838c8 |
32997
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
tile/strip calculations
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>TileDepth</tt>
|
|
Packit |
7838c8 |
32998
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
tile/strip calculations
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
<tt>StoNits</tt>
|
|
Packit |
7838c8 |
37439
|
|
Packit |
7838c8 |
R/W
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
The <tt>Matteing</tt> and <tt>DataType</tt>
|
|
Packit |
7838c8 |
tags have been obsoleted by the 6.0
|
|
Packit |
7838c8 |
<tt>ExtraSamples</tt> and <tt>SampleFormat</tt> tags.
|
|
Packit |
7838c8 |
Consult the documentation on the
|
|
Packit |
7838c8 |
<tt>ExtraSamples</tt> tag and Associated Alpha for elaboration. Note however
|
|
Packit |
7838c8 |
that if you use Associated Alpha, you are expected to save data that is
|
|
Packit |
7838c8 |
pre-multipled by Alpha. If this means nothing to you, check out
|
|
Packit |
7838c8 |
Porter & Duff's paper in the '84 SIGGRAPH proceedings: "Compositing Digital
|
|
Packit |
7838c8 |
Images".
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
The <tt>ImageDepth</tt>
|
|
Packit |
7838c8 |
tag is a non-standard, but registered tag that specifies
|
|
Packit |
7838c8 |
the Z-dimension of volumetric data. The combination of <tt>ImageWidth</tt>,
|
|
Packit |
7838c8 |
<tt>ImageLength</tt>, and <tt>ImageDepth</tt>,
|
|
Packit |
7838c8 |
defines a 3D volume of pixels that are
|
|
Packit |
7838c8 |
further specified by <tt>BitsPerSample</tt> and
|
|
Packit |
7838c8 |
<tt>SamplesPerPixel</tt>. The <tt>TileDepth</tt>
|
|
Packit |
7838c8 |
tag (also non-standard, but registered) can be used to specified a
|
|
Packit |
7838c8 |
subvolume "tiling" of a volume of data.
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
The Colorimetry, and CMYK tags are additions that appear in TIFF 6.0.
|
|
Packit |
7838c8 |
Consult the TIFF 6.0 specification included in the doc directory
|
|
Packit |
7838c8 |
and online.
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
The JPEG-related tag is specified in
|
|
Packit |
7838c8 |
TIFF Technical Note #2 which defines
|
|
Packit |
7838c8 |
a revised JPEG-in-TIFF scheme (revised over that appendix that was
|
|
Packit |
7838c8 |
part of the TIFF 6.0 specification).
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
Last updated: $Date: 2016-09-25 20:05:45 $
|
|
Packit |
7838c8 |
|
|
Packit |
7838c8 |
</body>
|
|
Packit |
7838c8 |
</html>
|
|
Packit |
7838c8 |
|