pgmhist Command Examples
Print a histogram of the values present in a PGM image. See also:
ppmhist
. More information: https://netpbm.sourceforge.net/doc/pgmhist.html.
- Display the histogram for human reading:
pgmhist {{path/to/image.pgm}}
- Display the median grey value:
pgmhist -median {{path/to/image.pgm}}
- Display four quartile grey value:
pgmhist -quartile {{path/to/image.pgm}}
- Report the existence of invalid grey values:
pgmhist -forensic {{path/to/image.pgm}}
- Display machine-readable output:
pgmhist -machine {{path/to/image.pgm}}