PPM2TIFF(1)                                           PPM2TIFF(1)



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

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

DESCRIPTION
       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),  com-
       pressed  with  the Packbits algorithm (Compression=32773),
       and with each strip no more than 8 kilobytes. These  char-
       acteristics  can  be  overridden,  or explicitly specified
       with the options described below

       If the PPM file contains greyscale data, then  the  Photo-
       metricInterpretation  tag is set to 1 (min-is-black), oth-
       erwise it is set to 2 (RGB).

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

OPTIONS
       -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  base-
              line 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).

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

       Libtiff    library   home   page:   http://www.remotesens-
       ing.org/libtiff/



libtiff                   March 1, 2006               PPM2TIFF(1)