Create PNM Colormap - Quantize Images | Online Free DevTools by Hexmos
Create PNM colormaps with pnmcolormap, optimizing image colors using quantization. Enhance images and reduce color palette size. Free online tool, no registration required.
pnmcolormap
Create quantization color map for a PNM image. More information: https://netpbm.sourceforge.net/doc/pnmcolormap.html.
- Generate an image using only
n_colorsor less colors as close as possible to the input image:
pnmcolormap {{n_colors}} {{path/to/input.pnm}} > {{path/to/output.ppm}}
- Use the splitspread strategy for determining the output colors, possibly producing a better result for images with small details:
pnmcolormap {{[-splits|-splitspread]}} {{n_colors}} {{path/to/input.pnm}} > {{path/to/output.ppm}}
- Sort the resulting colormap, which is useful for comparing colormaps:
pnmcolormap {{[-so|-sort]}} {{path/to/input.pnm}} > {{path/to/output.ppm}}