111 lines
3.2 KiB
Groff
111 lines
3.2 KiB
Groff
.\"
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.\" Copyright (c) 1990-1997 Sam Leffler
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.\" Copyright (c) 1991-1997 Silicon Graphics, Inc.
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.\"
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.\" Permission to use, copy, modify, distribute, and sell this software and
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.\" its documentation for any purpose is hereby granted without fee, provided
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.\" that (i) the above copyright notices and this permission notice appear in
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.\" all copies of the software and related documentation, and (ii) the names of
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.\" Sam Leffler and Silicon Graphics may not be used in any advertising or
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.\" publicity relating to the software without the specific, prior written
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.\" permission of Sam Leffler and Silicon Graphics.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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.\"
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.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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.\" OF THIS SOFTWARE.
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.\"
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.if n .po 0
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.TH PAL2RGB 1 "September 20, 2005" "libtiff"
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.SH NAME
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pal2rgb \- convert a palette color
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.SM TIFF
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image to a full color image
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.SH SYNOPSIS
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.B pal2rgb
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[
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.I options
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]
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.I input.tif
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.I output.tif
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.SH DESCRIPTION
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.I Pal2rgb
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converts a palette color
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.SM TIFF
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image to a full color image by
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applying the colormap of the palette image to each sample
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to generate a full color
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.SM RGB
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image.
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.SH OPTIONS
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Options that affect the interpretation of input data are:
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.TP
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.B \-C
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This option overrides the default behavior of
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.I pal2rgb
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in determining whether or not
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colormap entries contain 16-bit or 8-bit values.
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By default the colormap is inspected and
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if no colormap entry greater than 255 is found,
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the colormap is assumed to have only 8-bit values; otherwise
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16-bit values (as required by the
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.SM TIFF
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specification) are assumed.
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The
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.B \-C
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option can be used to explicitly specify the number of
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bits for colormap entries:
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.B "\-C 8"
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for 8-bit values,
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.B "\-C 16"
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for 16-bit values.
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.PP
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Options that affect the output file format are:
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.TP
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.B \-p
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Explicitly select the planar configuration used in organizing
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data samples in the output image:
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.B "\-p contig"
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for samples packed contiguously, and
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.B "\-p separate"
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for samples stored separately.
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By default samples are packed.
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.TP
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.B \-c
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Use the specific compression algorithm to encoded image data
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in the output file:
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.B "\-c packbits"
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for Macintosh Packbits,
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.B "\-c lzw"
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for Lempel-Ziv & Welch,
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.B "\-c zip"
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for Deflate,
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.B "\-c none"
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for no compression.
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If no compression-related option is specified, the input
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file's compression algorithm is used.
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.TP
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.B \-r
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Explicitly specify the number of rows in each strip of the
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output file.
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If the
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.B \-r
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option is not specified, a number is selected such that each
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output strip has approximately 8 kilobytes of data in it.
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.SH BUGS
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Only 8-bit images are handled.
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.SH "SEE ALSO"
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.BR tiffinfo (1),
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.BR tiffcp (1),
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.BR tiffmedian (1),
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.BR libtiff (3)
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.PP
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Libtiff library home page:
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.BR http://www.simplesystems.org/libtiff/
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