man ppm2tiff (Commandes) - create a TIFF file from a PPM image file


ppm2tiff - create a TIFF file from a PPM image file


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


ppm2tiff converts a file in the PPM image format to TIFF. By default, the TIFF image is created with data samples packed (c PlanarConfiguration=1), compressed with the Lempel-Ziv & Welch algorithm (c Compression=5), 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.


Specify a compression scheme to use when writing image data: -c none for no compression, -c packbits for the PackBits compression algorithm (the default), -c jpeg for the baseline JPEG compression algorithm, "-c zip for the Deflate compression algorithm, and -c lzw for Lempel-Ziv & Welch compression.
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.
Mark the resultant image to have the specified X and Y resolution (in dots/inch).