[sane-devel] HP Scanjet 5590: Scanning in Grayscale - Mode

[Stefan Kempf]

Hello,

the feeling of a grayscale-Image scanned by sane is like lineart. When I do
the same scan with HP-Scan-Util in XP, then it is a good Grayscale-image with
many details.

I've two examples of the same scan plus the differences in the histogram.
In the histogram, the differences are evident.

At the moment, the grayscale-images made by sane are not in good condition.

Perhaps, there are some hidden settings to avoid a manipulation of the
raw-data of the scanned image?

Best Regards
Stefan Kempf