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tldr/pages/common/pnmremap.md
Juri Dispan 13dc362fa8
pamflip, pnmcolormap, pnmquant, pnmremap, pnmrotate, ppmquant: add pages (#11800) 
* pamflip, pnmcolormap, pnmquant, pnmremap, pnmrotate, ppmquant: add pages

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Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>
Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>
2023-12-21 11:33:10 +05:30

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pnmremap

Replace the colors in a PNM image. More information: https://netpbm.sourceforge.net/doc/pnmremap.html.

  • Replace the colors in an image with those in the specified color palette:

pnmremap -mapfile {{path/to/palette_file.ppm}} {{path/to/input.pnm}} > {{path/to/output.pnm}}

  • Use Floyd-Steinberg dithering for representing colors missing in the color palette:

pnmremap -mapfile {{path/to/palette_file.ppm}} -floyd {{path/to/input.pnm}} > {{path/to/output.pnm}}

  • Use the first color in the palette for representing colors missing in the color palette:

pnmremap -mapfile {{path/to/palette_file.ppm}} -firstisdefault {{path/to/input.pnm}} > {{path/to/output.pnm}}

  • Use the specified color for representing colors missing in the color palette:

pnmremap -mapfile {{path/to/palette_file.ppm}} -missingcolor {{color}} {{path/to/input.pnm}} > {{path/to/output.pnm}}