plustek: Canon LiDE 20. Partial Success
Subject:
Re: Canon LiDE 20. Partial Success
From:
Alain Wenmaekers ####@####.####
Date:
6 Feb 2003 17:43:57 -0000
Message-Id: <200302061834.06511.alain.wenmaekers@skynet.be>
> In your case, you might also get better results, when playing around with
> the y-offset of the white calibration strip. To find the correct value, you
> can adjust the startvalue 100 down to 0, then you'll see the calibration
> area Play around with this value to have only the white strip in the lower
> part of your picture, the new found value should replace the currently set
> 35...
> structure in line 645, file plustek-devs.c (Lide20)
> {{ 0, 100}, 35, -1, {2550, 3508}, {75, 75}, COLOR_GRAY16 },
>
> If you have more questions - ask
OK. I did that.
Some results
1. vuescan(reference): http://users.skynet.be/bluedigit/vuescan.jpg
2. after gain playing (see previous mail):
http://users.skynet.be/bluedigit/corrected.jpg
3. defaults (value 35): http://users.skynet.be/bluedigit/sanedefault.jpg
-> same results from 26 up to 75
4. values < 24 & > +-75. too light: http://users.skynet.be/bluedigit/10.jpeg
5. value 62: gives a dark picture, but it contains blue (sorry, no example)
6. value 25: looks much better (however, still too much red):
http://users.skynet.be/bluedigit/25.jpeg
Grtz
Alain
