ppm2tiff(1) - phpMan

PPM2TIFF(1)                          General Commands Manual                          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),  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.

OPTIONS
       -c     Specify  a  compression scheme to use when writing image data: none for no compres-
              sion, packbits for PackBits compression (will be used by default), lzw for  Lempel-
              Ziv  &  Welch compression, jpeg for baseline JPEG compression, zip for Deflate com-
              pression, 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.remotesensing.org/libtiff/



libtiff                                   March 1, 2006                               PPM2TIFF(1)

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