TIFF2BWSection: User Commands (1)
Updated: November 2, 2005
Index Return to Main Contents
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.
- 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).
- 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.
- Specify the percentage of the red channel to use (default 28).
- Specify the percentage of the green channel to use (default 59).
- 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.remotesensing.org/libtiff/
This document was created by man2html, using the manual pages.
Time: 05:29:11 GMT, December 24, 2015