On 06/08/2011 09:34 PM, m. allan noah wrote: > Those circles are called half-toning. Look at your original paper with > a magnifier, and you will see them.
Yes, you are right. Sorry that I didn't notice earlier. As I know what's that now, I tried to google a bit without any good results. I only found descreening is what I'm looking for and that there are some past recurring discussions on sane lists. Is there any fast descreening filter you use guys to get rid of that? (At least links to productive sane-devel threads would be appreciated.) I only came across: convert circles.png -median 7 circles1.png which makes the picture a heap better. But it lasts ages. thanks, -- js
