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 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).
SEE ALSO
tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3)
Libtiff library home page: http://www.remotesensing.org/libtiff/