Man Linux: Main Page and Category List


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


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


       ppm2tiff converts a file in the PPM, PGM and PBM image formats to TIFF.
       By default,  the  TIFF  image  is  created  with  data  samples  packed
       (PlanarConfiguration=1),   compressed   with   the  Packbits  algorithm
       (Compression=32773), and with each strip  no  more  than  8  kilobytes.
       These  characteristics  can be overridden, or explicitly specified with
       the options described below

       If   the   PPM    file    contains    greyscale    data,    then    the
       PhotometricInterpretation  tag is set to 1 (min-is-black), otherwise it
       is set to 2 (RGB).

       If no PPM file is specified on the command  line,  ppm2tiff  will  read
       from the standard input.


       -c     Specify  a  compression  scheme  to use when writing image data:
              none for no compression, packbits for PackBits compression (will
              be  used  by  default),  lzw for Lempel-Ziv & Welch compression,
              jpeg for baseline JPEG compression, zip for Deflate compression,
              g3 for CCITT Group 3 (T.4) compression, and g4 for CCITT Group 4
              (T.6) compression.

       -r     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.

       -R     Mark  the  resultant  image  to  have  the  specified  X  and  Y
              resolution (in dots/inch).


       tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3)

       Libtiff library home page: