Man1 - ppm2tiff.1

ppm2tiff - create a

file from

and

image files

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

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.

-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).

*tiffinfo*(1), *tiffcp*(1), *tiffmedian*(1), *libtiff*(3)

Libtiff library home page: http://www.simplesystems.org/libtiff/