ras2tiff man page on DigitalUNIX

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RAS2TIFF(1)							   RAS2TIFF(1)

       ras2tiff - create a TIFF file from a Sun rasterfile

       ras2tiff [ options ] input.ras output.tif

       ras2tiff	 converts  a  file  in	the Sun rasterfile format to TIFF.  By
       default, the TIFF image is created with data samples packed (PlanarCon‐
       figuration=1),  compressed  with the Lempel-Ziv & Welch algorithm (Com‐
       pression=5), and with each strip no more than 8 kilobytes.  These char‐
       acteristics  can	 overriden,  or	 explicitly specified with the options
       described below.

       Any colormap information in the rasterfile is carried over to the  TIFF
       file by including a Colormap tag in the output file.  If the rasterfile
       has a colormap, the PhotometricInterpretation tag is  set  to  3	 (pal‐
       ette);  otherwise it is set to 2 (RGB) if the depth is 24 or 1 (min-is-
       black) if the depth is not 24.

       -c     Specify a compression scheme to use when writing image data:  -c
	      none  for	 no compression, -c packbits for the PackBits compres‐
	      sion algorithm, -c jpeg for the baseline JPEG compression	 algo‐
	      rithm,  -c zip for the Deflate compression algorithm, and -c lzw
	      for Lempel-Ziv & Welch (the default).

       -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.

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

       pal2rgb(1), tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3)

			       October 15, 1995			   RAS2TIFF(1)

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