.\" $Id: pal2rgb.1,v 1.3 2005/11/02 11:07:19 dron Exp $

.\"

.\" Copyright (c) 1990-1997 Sam Leffler

.\" Copyright (c) 1991-1997 Silicon Graphics, Inc.

.\"

.\" Permission to use, copy, modify, distribute, and sell this software and 

.\" its documentation for any purpose is hereby granted without fee, provided

.\" that (i) the above copyright notices and this permission notice appear in

.\" all copies of the software and related documentation, and (ii) the names of

.\" Sam Leffler and Silicon Graphics may not be used in any advertising or

.\" publicity relating to the software without the specific, prior written

.\" permission of Sam Leffler and Silicon Graphics.

.\" 

.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 

.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 

.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  

.\" 

.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR

.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,

.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 

.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 

.\" OF THIS SOFTWARE.

.\"

.if n .po 0

.TH PAL2RGB 1 "September 20, 2005" "libtiff"

.SH NAME

pal2rgb \- convert a palette color

.SM TIFF

image to a full color image

.SH SYNOPSIS

.B pal2rgb

[

.I options

]

.I input.tif

.I output.tif

.SH DESCRIPTION

.I Pal2rgb

converts a palette color

.SM TIFF

image to a full color image by

applying the colormap of the palette image to each sample

to generate a full color

.SM RGB

image.

.SH OPTIONS

Options that affect the interpretation of input data are:

.TP

.B \-C

This option overrides the default behavior of

.I pal2rgb

in determining whether or not

colormap entries contain 16-bit or 8-bit values.

By default the colormap is inspected and

if no colormap entry greater than 255 is found,

the colormap is assumed to have only 8-bit values; otherwise

16-bit values (as required by the

.SM TIFF

specification) are assumed.

The

.B \-C

option can be used to explicitly specify the number of

bits for colormap entries:

.B "\-C 8"

for 8-bit values, 

.B "\-C 16"

for 16-bit values.

.PP

Options that affect the output file format are:

.TP

.B \-p

Explicitly select the planar configuration used in organizing

data samples in the output image:

.B "\-p contig"

for samples packed contiguously, and

.B "\-p separate"

for samples stored separately.

By default samples are packed.

.TP

.B \-c

Use the specific compression algorithm to encoded image data

in the output file:

.B "\-c packbits"

for Macintosh Packbits,

.B "\-c lzw"

for Lempel-Ziv & Welch,

.B "\-c zip"

for Deflate,

.B "\-c none"

for no compression.

If no compression-related option is specified, the input

file's compression algorithm is used.

.TP

.B \-r

Explicitly specify the number of rows in each strip of the

output file.

If the

.B \-r

option is not specified, a number is selected such that each

output strip has approximately 8 kilobytes of data in it.

.SH BUGS

Only 8-bit images are handled.

.SH "SEE ALSO"

.BR tiffinfo (1),

.BR tiffcp (1),

.BR tiffmedian (1),

.BR libtiff (3)

.PP

Libtiff library home page:

.BR http://www.remotesensing.org/libtiff/