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Synopsis ¶
iquantize [-v] [-G] [-d type] [-n max] [-m method] inimage outimage
Description ¶
This program takes a 32 bit raster image and quantizes the color space to use a maximum given number of colors. The program can also choose the “best” colors for the specified image.
Options ¶
-v
Verbose output.
-G
Force output to be gif format.
-d
type Specify dithering method 0 = no dithering 1 =
Floyd-Steinberg (default)
-n
max Specify the maximum number of colors to use (256).
-m
method Specify color map selection algorithm. 0 = quick method
1 = median cut algorithm (default) or specify a map file
If a map file is specified for the method, then only colors from the mapfile will be used. The mapfile is a list of colors ranging from 0 to 255 in R, G, and B. Each color should be specified on a different line. For example:
0 0 0 85 85 85 170 170 170 255 255 255
This mapfile would result in a monochrome image using only four colors.