pbmtopgm
Convert a PBM image to PGM by averaging areas surrounding individual pixels.
See also: pnmconvol
, pamditherbw
.
More information: https://netpbm.sourceforge.net/doc/pbmtopgm.html.
- Convert PBM image to PGM by averaging the
w
xh
-sized area surrounding each pixel:
pbmtopgm
w
h
path/to/image.pbm >
path/to/output.pgm