then there are people such as me who had to replace my scanner's glass - I guess the glass from the hardware store is more green / uncoated than the original - so it needs some adjustment in all cases; in the color case usually brightness/contrast adjustments are sufficient to make it look reasonably normal - although realistic-looking photos are a different matter!
in the monochrome case, similarly a greyscale scan then brightness/contrast adjustments are necessary, it would be nice to have preset adjustments available so that the scan as directly saved from simple scan was already reasonably adjusted; so I'd suggest, for the monochrome case, a brightness/contrast[/gamma?] setting to 'prefilter' the 1bpp type result [currently 'text' setting], so that for all possible scanners it could produce a legible document, possibly in addition to the 2bpp 4-value type result you are mooting? It would seem that this links to #498029 although I'd reiterate what has already been said, that it would be nicer to filter the image before saving [even before preview really], rather than adding a color profile to the saved image - particularly as a quick look at the patch there seems to suggest that for instance pdf images can't have embedded color profiles as there is the possibility of calling imagemagick [when installed] from the code, it would seem reasonably straightforward to call it to prefilter images; then the monochrome scan could simply be an 8bpp greyscale scan, that is subsequently filtered into a 1bpp / 2bpp 'preview' image for saving/sending/etc could possibly add imagemagick/graphicsmagick libs to the deps then call the lib functions directly from the code ** Attachment added: "scans.pdf" http://launchpadlibrarian.net/45889530/scans.pdf -- Use a few gray levels for text scans https://bugs.launchpad.net/bugs/521323 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
