ppm2tiff(1)							   User Commands						       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 and Welch algorithm (Compression=5), and with each strip no more than 8 kilobytes. These character-
       istics can be overridden or explicitly specified with the options described below.

       If  the PPM file contains grayscale data, the PhotometricInterpretation tag is set to 1 (min-is-black). Otherwise, the PhotometricInterpre-
       tation tag is set to 2 (RGB).

       If no PPM file is specified on the command line, ppm2tiff reads from the standard input.

OPTIONS

       The following options are supported:

       -c	       Specify a compression scheme to use when writing image data:

		       -c jpeg		       Baseline JPEG compression algorithm.

		       -c lzw		       Lempel-Ziv and Welch algorithm. This is the default algorithm.

		       -c none		       No compression.

		       -c packbits	       PackBits compression algorithm.

		       -c zip		       Deflate compression algorithm.

       -r	       Write data with a specified number of rows per strip. By default, the number of rows per 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 per inch.

OPERANDS

       The following operands are supported:

       input.ppm       The name of the input file that contains PPM data.

       output.tif      The name of the output file that contains TIFF data.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWTiff			   |
       +-----------------------------+-----------------------------+
       |Interface stability	     |External			   |
       +-----------------------------+-----------------------------+

SEE ALSO

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

NOTES

       Updated by Breda McColgan, Sun Microsystems Inc., 2004.

SunOS 5.10							    26 Mar 2004 						       ppm2tiff(1)