pnmquant
all
Quantize the colors in a PNM image into a smaller set. This command is a combination of `pnmcolormap` and `pnmremap` and accepts the union of their options, except `-mapfile`. See also: `pnmquantall`.
More info →Examples (1)
Generate an image using only `n_colors` or less colors as close as possible to the input image
pnmquant n_colors path/to/input.pnm > path/to/output.pnmmade by @shridhargupta | data from tldr-pages