1PPM2TIFF(1)                 General Commands Manual                PPM2TIFF(1)
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NAME

6       ppm2tiff - create a TIFF file from PPM, PGM and PBM image files
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SYNOPSIS

9       ppm2tiff [ options ] [ input.ppm ] output.tif
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DESCRIPTION

12       ppm2tiff converts a file in the PPM, PGM and PBM image formats to TIFF.
13       By default, the TIFF image is created with data samples packed (Planar‐
14       Configuration=1),  compressed  with  the  Packbits  algorithm (Compres‐
15       sion=32773), and with each strip no more than 8 kilobytes. These  char‐
16       acteristics can be overridden, or explicitly specified with the options
17       described below
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19       If the PPM file contains greyscale data, then the  PhotometricInterpre‐
20       tation tag is set to 1 (min-is-black), otherwise it is set to 2 (RGB).
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22       If  no  PPM  file  is specified on the command line, ppm2tiff will read
23       from the standard input.
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OPTIONS

26       -c     Specify a compression scheme to use  when  writing  image  data:
27              none for no compression, packbits for PackBits compression (will
28              be used by default), lzw for  Lempel-Ziv  &  Welch  compression,
29              jpeg for baseline JPEG compression, zip for Deflate compression,
30              g3 for CCITT Group 3 (T.4) compression, and g4 for CCITT Group 4
31              (T.6) compression.
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33       -r     Write data with a specified number of rows per strip; by default
34              the number of rows/strip is  selected  so  that  each  strip  is
35              approximately 8 kilobytes.
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37       -R     Mark  the  resultant image to have the specified X and Y resolu‐
38              tion (in dots/inch).
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SEE ALSO

41       tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3)
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43       Libtiff library home page: http://www.simplesystems.org/libtiff/
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47libtiff                          March 1, 2006                     PPM2TIFF(1)
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