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.TH "PAL2RGB" "1" "Jun 10, 2023" "4.5" "LibTIFF"
.SH NAME
pal2rgb \- convert a palette color TIFF image to a full color image
.SH SYNOPSIS
.sp
\fBpal2rgb\fP [ \fIoptions\fP ] \fIinput.tif\fP \fIoutput.tif\fP
.SH DESCRIPTION
.sp
\fBpal2rgb\fP converts a palette color image to a full color image by
applying the colormap of the palette image to each sample to generate a full color
RGB image.
.SH OPTIONS
.sp
Options that affect the interpretation of input data are:
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.TP
.B \-C numentries
This option overrides the default behavior of \fBpal2rgb\fP
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 TIFF
specification) are assumed.
The
\fI\%\-C\fP
option can be used to explicitly specify the number of
bits for colormap entries:
\fB\-C 8\fP for 8\-bit values,
\fB\-C 16\fP for 16\-bit values.
.UNINDENT
.sp
Options that affect the output file format are:
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.TP
.B \-p planarconfig
Explicitly select the planar configuration used in organizing
data samples in the output image:
\fB\-p contig\fP for samples packed contiguously, and
\fB\-p separate\fP for samples stored separately.
By default samples are packed.
.UNINDENT
.INDENT 0.0
.TP
.B \-c compress
Use the specified compression algorithm to encoded image data
in the output file:
\fB\-c packbits\fP for Macintosh Packbits,
\fB\-c lzw\fP for Lempel\-Ziv & Welch,
\fB\-c zip\fP for Deflate,
\fB\-c none\fP
for no compression.
If no compression\-related option is specified, the input
file\(aqs compression algorithm is used.
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.INDENT 0.0
.TP
.B \-r striprows
Explicitly specify the number of rows in each strip of the
output file. If the \fI\%\-r\fP
option is not specified, a number is selected such that each
output strip has approximately 8 kilobytes of data in it.
.UNINDENT
.SH BUGS
.sp
Only 8\-bit images are handled.
.SH SEE ALSO
.sp
\fI\%tiffinfo\fP (1),
\fI\%tiffcp\fP (1),
\fI\%tiffmedian\fP (1),
\fI\%libtiff\fP (3tiff)
.SH AUTHOR
LibTIFF contributors
.SH COPYRIGHT
1988-2022, LibTIFF contributors
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