Hi, I'm currently playing around with the genesys backend, trying to force the scanner to over-/underexpose the image. The backend already has the option to switch the lamp off; I'd like to use that feature to scan arbitrary translucent/projected images - but I would have to control the exposure time.
I'm a bit confused of the various calculation steps needed to calculate the "exposure"; if I simple overwrite the exposure_time calculated during scaning to a custom value, the head moves slowly but scans only a small portion of the image. I looked into the datasheet of the Genesys GL841 chip; I guess the "line peroid" setting is the right thing to change, but it seems this is also linked to the motor driving unit? I realize this is probably a silly question and an absolutely non-standard usecase, but maybe someone on the list can still help? Anyway.. thanks in advance, Alexander -- sane-devel mailing list: [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject "unsubscribe your_password" to [email protected]
