[sane-devel] Missing greys

2006-12-02 Thread Pierre Willenbrock
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

[sane-devel] Missing greys

2006-12-01 Thread Henrik Uggla
Hi! 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