ppm2tiff (1)

Leading comments

$Id: ppm2tiff.1,v 1.6 2016-09-25 20:05:51 bfriesen Exp $

Copyright (c) 1991-1997 Sam Leffler
Copyright (c) 1991-1997 Silicon Graphics, Inc.

Permission to use, copy, modify, distribute, and sell this software and
its documentation for any purpose is hereby granted without fee, provided
that (i) the above copyright notices and this permission notice appear in
all copies of the software and related documentation, and (ii) the names of
Sam Leffler and Silicon Graphics may not be used in any adv...

(The comments found at the beginning of the groff file "man1/ppm2tiff.1".)

NAME

ppm2tiff - create a file from and image files

SYNOPSIS

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

DESCRIPTION

ppm2tiff converts a file in the and image formats to By default, the 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

file contains greyscale data, then the PhotometricInterpretation tag is set to 1 (min-is-black), otherwise it is set to 2 (RGB).

If no

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: www.simplesystems.org/libtiff