[vox-tech] convert PNM image to PBM using pbmtools?

nbs vox-tech@lists.lugod.org
Mon, 17 Jun 2002 23:28:04 -0700


On Mon, Jun 17, 2002 at 05:22:13PM -0700, Henry House wrote:
> Does anyone know how to convert a PNM (portable anymap) image into a PBM
> (portable bitmap) on the command line? The closest that I can come is to use
> pbmdepth to convert to a 1-bit deep image, but the result is a PGM (portable
> graymap), not a PBM. Any ideas?

pnmtopgm foo.pnm | pgmtopbm > foo.pbm


Useful for making ASCII art:

  djpeg foo.jpg | pnmscale .XYZ | pnmtopgm | pgmtopbm | pbmtoascii > foo.txt

:)

-bill!