I'm trying to figure out what I need to do to make my Canon LiDE 120 calibrate itself before a scan. I'm using 1.0.27git installed from Rolf Bensch's PPA. I see a tangential reference to undocumented command --calibrate, but when I use it in a scanimage command, I'm told:
scanimage: unrecognized option '--calibrate' When I install the Windows software for the scanner, I am able to get a nice, calibrated flat white field result when scanning the background, but when I use scanimage on my Linux system I always see an uneven whiteness which varies horizontally but not vertically. I've done a number of internet searches on this topic, but I haven't found anything helpful. Can anyone suggest a solution? Thanks, Marshall Jose
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