CmdID

CmdID / Commands

pnmhisteq

Histogram-equalize a PNM image. tldr-pages

On several platforms

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Several platforms

from tldr-pages, CC BY 4.0

Increase the contrast of a PNM image using histogram equalization

pnmhisteq path/to/input.pnm >path/to/output.pnmIdentify

Only modify grey pixels

pnmhisteq -grey path/to/input.pnm >path/to/output.pnmIdentify

Do not include black or white pixels in the histogram equalization

pnmhisteq -noblack path/to/input.pnm >path/to/output.pnmIdentify