snippetbashTip

ppmhist — Print a histogram of the colors present in a PPM image. See also: `pgmhist`. More information: <http

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

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thecommandcolorsppmhistcliprinthistogrampresent

Problem

How to use the ppmhist command: Print a histogram of the colors present in a PPM image. See also: pgmhist. More information: <https://netpbm.sourceforge.net/doc/ppmhist.html>.

Solution

ppmhist — Print a histogram of the colors present in a PPM image. See also: pgmhist. More information: <https://netpbm.sourceforge.net/doc/ppmhist.html>.

Generate the histogram for human reading:

ppmhist {{[-nom|-nomap]}} {{path/to/image.ppm}}

Generate a PPM file of the colormap for the image, with the color histogram as comments:

ppmhist {{[-m|-map]}} {{path/to/image.ppm}}

Display version:

ppmhist {{[-v|-version]}}

Code Snippets

Generate the histogram for human reading

ppmhist {{[-nom|-nomap]}} {{path/to/image.ppm}}

Generate a PPM file of the colormap for the image, with the color histogram as comments

ppmhist {{[-m|-map]}} {{path/to/image.ppm}}

Display version

ppmhist {{[-v|-version]}}

Context

tldr-pages: common/ppmhist

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