4 Nov
2003
4 Nov
'03
6:34 a.m.
Dear Sir, many thanks for your kind help. This is precisely what I was searching for. Bill McClain wrote:
pnmscale -width=1950 pleiades.pnm | pnmsmooth -size 5 5 | pgmtopbm -fs -value 0.5 | pnmtopng > pleiades.png
BTW, is there some easy way to set the size of the dithering points (eg. 2x2 pixels, 3x3 pixels), or should I do it ex post in some image editor (Gimp, imagemagick)? Many thanks once more. M.K.