Lines Matching refs:pbm
3564 # Unlike PBM, PGM, and PPM, we can read the header a line at a time.
3602 channels in the image; for PBM and PGM it is synthesized as 1, for
3604 synthesized (as 1) for PBM images.
3623 pbm = ('P1', 'P4')
3624 if type in pbm:
3671 if type in pbm:
3691 # Could generate PBM if maxval is 1, but we don't (for one
