CentOS 7.0 - man page for tiff2rgba (centos section 1)

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TIFF2RGBA(1)									     TIFF2RGBA(1)

NAME
       tiff2rgba - convert a TIFF image to RGBA color space

SYNOPSIS
       tiff2rgba [ options ] input.tif output.tif

DESCRIPTION
       Tiff2rgba  converts  a wide variety of TIFF images into an RGBA TIFF image.  This includes
       the ability to translate different color spaces and photometric interpretation into  RGBA,
       support for alpha blending, and translation of many different bit depths into a 32bit RGBA
       image.

       Internally this program is implemented using the TIFFReadRGBAImage() function, and it suf-
       fers  any  limitations of that image.  This includes limited support for > 8 BitsPerSample
       images, and flaws with some esoteric combinations of BitsPerSample, photometric	interpre-
       tation, block organization and planar configuration.

       The generated images are stripped images with four samples per pixel (red, green, blue and
       alpha) or if the -n flag is used, three samples per pixel (red,	green,	and  blue).   The
       resulting  images  are always planar configuration contiguous.  For this reason, this pro-
       gram is a useful utility for transform exotic TIFF files into a form ingestible by  almost
       any TIFF supporting software.

OPTIONS
       -c     Specify  a  compression  scheme to use when writing image data: -c none for no com-
	      pression (the default), -c packbits for the PackBits compression algorithm, -c  zip
	      for  the Deflate compression algorithm, -c jpeg for the JPEG compression algorithm,
	      and -c lzw for Lempel-Ziv & Welch.

       -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.

       -b     Process  the image one block (strip/tile) at a time instead of by reading the whole
	      image into memory at once.  This may be necessary for very large images on  systems
	      with limited RAM.

       -n     Drop  the  alpha	component  from the output file, producing a pure RGB file.  Cur-
	      rently this does not work if the -b flag is also in effect.

SEE ALSO
       tiff2bw(1), TIFFReadRGBAImage(3t), libtiff(3)

       Libtiff library home page: http://www.remotesensing.org/libtiff/

libtiff 				 November 2, 2005			     TIFF2RGBA(1)
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