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.TH "PPM2TIFF" "1" "Jan 27, 2024" "4.5" "LibTIFF"
.SH NAME
ppm2tiff \- create a TIFF file from PPM, PGM and PBM image files
.sp
Synopsis
.sp
\fBppm2tiff\fP [ \fIoptions\fP ] [ \fIinput.ppm\fP ] \fIoutput.tif\fP
.SH DESCRIPTION
.sp
\fBppm2tiff\fP converts a file in the PPM, PGM and PBM image formats to
TIFF.  By default, the TIFF image is created with data samples packed
(\fBPlanarConfiguration=1\fP), compressed with the Packbits algorithm
(\fBCompression=32773\fP), and with each strip no more than 8 kilobytes.
These characteristics can be overridden, or explicitly specified with the
options described below.
.sp
If the PPM file contains greyscale data, then the \fBPhotometricInterpretation\fP
tag is set to 1 (min\-is\-black), otherwise it is set to 2 (RGB).
.sp
If no PPM file is specified on the command line, \fBppm2tiff\fP
will read from the standard input.
.SH OPTIONS
.INDENT 0.0
.TP
.B \-c compress
Specify a compression scheme to use when writing image data:
\fB\-c none\fP for no compression,
\fB\-c packbits\fP for PackBits compression (will be used by default),
\fB\-c lzw\fP for Lempel\-Ziv & Welch compression,
\fB\-c jpeg\fP for baseline JPEG compression,
\fB\-c zip\fP for Deflate compression,
\fB\-c g3\fP for CCITT Group 3 (T.4) compression, and
\fB\-c g4\fP for CCITT Group 4 (T.6) compression.
.UNINDENT
.INDENT 0.0
.TP
.B \-r striprows
Write data with a specified number of rows per strip; by default the number of
rows/strip is selected so that each strip is approximately 8 kilobytes.
.UNINDENT
.INDENT 0.0
.TP
.B \-R resolution
Mark the resultant image to have the specified X and Y resolution (in
dots/inch).
.UNINDENT
.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
1988-2024, LibTIFF contributors
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