User Commands                                         ras2tiff(1)



NAME
     ras2tiff - create a TIF file from a Sun rasterfile

SYNOPSIS
     ras2tiff [options] input.ras output.tif

DESCRIPTION
     ras2tiff converts a file in the  Sun  rasterfile  format  to
     TIF.  By  default, the TIF image is created with data sam-
     ples 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.

     Any colormap information in the rasterfile is  carried  over
     to  the  TIF file by including a Colormap tag in the output
     file. If the rasterfile has a colormap,  the  PhotometricIn-
     terpretation  tag is set to 3 (palette). Otherwise, the Pho-
     tometricInterpretation tag is set to 2 (RGB) if the depth is
     24, or to 1 (min-is-black) if the depth is not 24.

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                                         ras2tiff(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.



OPERANDS
     The following operands are supported:

     input.ras       The name of the input file that contains Sun
                     rasterfile data.



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



ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:

     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Availability                 SUNWTiff                    
    
     Interface stability          Uncommitted                 
    


SEE ALSO
     pal2rgb(1),  tiffinfo(1),  tiffcp(1),  tiffmedian(1),   lib-
     tiff(3)

NOTES
     Does not support all possible  rasterfiles.  In  particular,
     ras2tiff does not support run-length encoded images.

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








SunOS 5.11          Last change: 26 Mar 2004                    2