Hi Henrik Henrik Uggla schrieb: > I've got a Canoscan Lide 50. I have discovered that when I scan at 150 > dpi or more the greys are missing in depth (in the black end). But when > I scan at only 75 dpi the result looks much better since darker and > lighter pixels are mixed to show the right grey nuance. Is it possible > to have this behaviour at higher resolutions as well and in that way > "creating" those missing greys?
I can't explain why there is a difference between calibration for 75dpi compared to 150dpi(You didn't scan them at different bit depth, i guess). But anyways, dark shades were incorrect since the beginning of Canon LiDE 50 support. I had some improvements to the calibration process sitting in my local copy since about 3 months, so i just committed them. You can get them from the cvs repository. Test results for the current method are welcome. Regards, Pierre
