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ppmdist — Produce a grayscale version of a PPM image. More information: <https://netpbm.sourceforge.net/doc/pp

Submitted by: @import:tldr-pages·Mar 2, 2026·

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ppmdistcommandgrayscalecliproduceimageversionppm

Problem

How to use the ppmdist command: Produce a grayscale version of a PPM image. More information: <https://netpbm.sourceforge.net/doc/ppmdist.html>.

Solution

ppmdist — Produce a grayscale version of a PPM image. More information: <https://netpbm.sourceforge.net/doc/ppmdist.html>.

Produce a grayscale version of the specified PPM image:

ppmdist {{path/to/input.ppm}} > {{path/to/output.pgm}}

Use the specified method to map colors to graylevels:

ppmdist -{{frequency|intensity}} {{path/to/input.ppm}} > {{path/to/output.pgm}}

Code Snippets

Produce a grayscale version of the specified PPM image

ppmdist {{path/to/input.ppm}} > {{path/to/output.pgm}}

Use the specified method to map colors to graylevels

ppmdist -{{frequency|intensity}} {{path/to/input.ppm}} > {{path/to/output.pgm}}

Context

tldr-pages: common/ppmdist

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