pbmclean
Clean up a PBM image by erasing isolated black and white pixels.
TLDR
Clean up a PBM image by erasing isolated black and white pixels
$ pbmclean [path/to/image.pbm] > [path/to/output.pbm]
Clean up only black/white pixels
$ pbmclean -[black|white] [path/to/image.pbm] > [path/to/output.pbm]
Specify the minimum number of neighbouring pixels of the same color in order for a pixel not to be considered isolated
$ pbmclean -minneighbours [3] [path/to/image.pbm] > [path/to/output.pbm]
