tiff2bw1
Convert a color tiff image to greyscale
Usage
tiff2bw [options]
input.tif
output.tif
Overview
tiff2bw 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 compress -
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, -c lzw for Lempel-Ziv & Welch (the default).
-
-r striprows -
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 redperc -
Specify the percentage of the red channel to use (default 28).
-
-G greenperc -
Specify the percentage of the green channel to use (default 59).
-
-B blueperc -
Specify the percentage of the blue channel to use (default 11).
Releases
17 releases since Debian 1.2 (Rex); the text changed 10 times.