Manual Pages for UNIX Operating System command usage for man ppm2tiff

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
     (PlanarConfiguration=1), compressed with the Lempel-Ziv  and
     Welch algorithm (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 grayscale data, the  PhotometricIn-
     terpretation  tag is set to 1 (min-is-black). Otherwise, the
     PhotometricInterpretation 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    algo-
                                             rithm.




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



                     -c none                 No compression.



                     -c packbits             PackBits compression
                                             algorithm.







SunOS 5.11          Last change: 26 Mar 2004                    1






User Commands                                         ppm2tiff(1)



                     -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  speci-
                     fied 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  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | image/library/libtiff       |
    |_____________________________|_____________________________|
    | Interface stability         | Uncommitted                 |
    |_____________________________|_____________________________|


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

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







SunOS 5.11          Last change: 26 Mar 2004                    2