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  (the  default),	-c jpeg for the baseline JPEG
	      compression algorithm, -c zip for the Deflate compression algo-
	      rithm, and -c lzw for Lempel-Ziv & Welch 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 resolu-
	      tion (in dots/inch).

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



			       October 15, 1995			  PPM2TIFF(1)