ppm2tiff

PPM2TIFF(1)                                                        PPM2TIFF(1)



NAME
       ppm2tiff - create a TIFF file from a PPM image file

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

DESCRIPTION
       ppm2tiff  converts a file in the PPM image format to TIFF.  By default,
       the TIFF image is created with data  samples  packed  (PlanarConfigura-
       tion=1),  compressed  with  the  Lempel-Ziv & Welch algorithm (Compres-
       sion=5), and with each strip no more than 8 kilobytes.   These  charac-
       teristics  can  be  overriden, or explicitly specified with the options
       described below

       If the PPM file contains greyscale data, then the  PhotometricInterpre-
       tation  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.

OPTIONS
       -c     Specify  a compression scheme to use when writing image data: -c
              none for no compression, -c packbits for the  PackBits  compres-
              sion  algorithm, -c jpeg for the baseline JPEG compression algo-
              rithm, -c zip for the Deflate compression algorithm, and -c  lzw
              for Lempel-Ziv & Welch compression (the default).

       -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 resolu-
              tion (in dots/inch).

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



                               October 15, 1995                    PPM2TIFF(1)