TIFF2BW - Online Linux Manual PageSection : 1
Updated : November 2, 2005
Source : libtiff
NAMEtiff2bw − convert a color TIFF image to greyscale
SYNOPSIStiff2bw [ options ] input.tif output.tif
DESCRIPTIONTiff2bw converts an RGB or Palette color TIFF image to a greyscale image by combining percentages of the red, green, and blue channels. By default, output samples are created by taking 28% of the red channel, 59% of the green channel, and 11% of the blue channel. To alter these percentages, the −R, −G, and −B options may be used.
OPTIONS−c Specify a compression scheme to use when writing image data: −c none" for no compression, −c packbits" for the PackBits compression algorithm, "−c zip for the Deflate compression algorithm, "−c g3 for the CCITT Group 3 compression algorithm, "−c g4 for the CCITT Group 4 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. −R Specify the percentage of the red channel to use (default 28). −G Specify the percentage of the green channel to use (default 59). −B Specify the percentage of the blue channel to use (default 11).
SEE ALSOpal2rgb(1), tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3) Libtiff library home page: http://www.simplesystems.org/libtiff/ 0
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