Hello, at first I have to thank you for reading my problem and give me direction ^^
Double the width works, I can get both side in one image at the same time. But there is one another question . When I set the image to gray-scale image (pgm) by "scanimage -x 212 -y 120 --format=pnm > output.pgm" Things goes very well. But if I set the image to color image(ppm) by "scanimage --mode Color -x 212 -y 120 --format=pnm > output.ppm" There seems to be some noises on the image. There are serveral yellow lines on the front-side image of my name card, and the back-side is a good one. I've also changed "-y 120" to "-y 90" range to "-y 140", and it didn't work. Belows are my output image on dropbox . Could you kindly tell me how to make the image good? Thank you >< Gray http://dl.dropbox.com/u/50343039/output.pgm Color http://dl.dropbox.com/u/50343039/output.ppm B.R 2011/11/15 Stef <stef.dev at free.fr> > Le lundi 14 novembre 2011 07:17:23 m. allan noah a ?crit : > > According to our support page: > > > > > http://www.sane-project.org/cgi-bin/driver.pl?manu=syscan&model=685&bus=any&; > > v=&p= > > > > the backend does not fully support duplex: > > > > "front- and backside side-by-side, with backside mirrored horizontally." > > > > Have you tried making your requested image wider? > > > > allan > > > > Hello, > > I confirm that the genesys backend doesn't handle duplex. The two > sensors > are used as a single wide sensor. When using full scan area width (which is > about the double of the width of A4), you 'll get front picture on the left > side, while the back's one will be on the right top down. So you'll have to > cut the scanned picture in two and filp one of the parts. > > Regards, > Stef > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20111121/9ab8c870/attachment.html>
