[sane-devel] TR: Calibration, need infos, comments, screenshots included

[Patrick Lessard]

Hello,

I'm beginning understanding the backend code for my Umax scanner.

Now I've included 2 screenshots, one is the find_zero.pgm, which is where is
detect the black stripe and the other is the calibration strip, both under
the scanner's lid.

The find_zero.pgm seems fine, but not the calibration.pgm.

My question is, what should the calibration.pgm image should look like?

Should it be a plain grey image all the way long?

Thank you.

Patrick.

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