[sane-devel] Re: sane-devel digest, Vol 1 #806 - 7 msgs

[Stéphane VOLTZ]

	Hello,

	The test16.pnm picture you posted is perfectly fine (I'm using Imagemagick
to see it). The trouble you get is related to the image viewer you use.
After trying konqueror to display it, I saw the same artifacts you get. So
it's a kde a bug related to 16 bits pictures.

	For the other bug -trying to scan outside usable area- bound checking is
done. I think it may be a bug in scan area origin detection bug. Origin may be
wrongly detected a few mm too much toward "buttons side", so the scanning
head goes to far. You may check it by scanning a triangle shaped paper, with
one corner touching the very top of the scanning area. If expect that a few mm
of it will be missing.
	
	You may also wait ~45 s after powering before testing. I think origin
detection may fails if scanner isn't warm enough.

	When all debug is activated, the backend write debug pnm files containing 
data is scans. I'd like to have these:
	- search_position16.pnm
	- search_position.pnm
	- laplace.pnm
	- xsobel.pnm
	- ysobel.pnm

Regards,
	Stef