plustek: Colour-values in plustek scan compared to windows.
Subject:
Re: Colour-values in plustek scan compared to windows.
From:
Gerhard Jaeger ####@####.####
Date:
14 Feb 2003 21:04:51 -0000
Message-Id: <200302140822.22616.gerhard@gjaeger.de>
Hi Göran,
this is also a known issue, see the detection stuff in the log.
The device is detected as a OP600P and so the colors are
switched...
The solution is to use the module switch mov=6 - see sane-plustek
man page for further details!
This should fix the problem,
Gerhard
On Mittwoch, 12. Februar 2003 20:42, Göran Larsson wrote:
> HI!
>
> Box is 800Mhz Athlon 256MB ram NVIDIA video 30GB on two HD,Windows98se
> SuSE Linux 8.0. SANE-1.0.10 and plustek-sane-0.45-3.Scanner OpticPro 4800P.
> Maybe the plustek-sane is unnecessary but I didnt know.
>
> Made two scans one with windows and one with linux and GIMP.
> Measured the colours with Gimp-pipett on the same spots approximative.
> The result is as follows:
>
> Windows Linux
>
> Resol. 75dpi 78 dpi
> Brightn. 53 (0 - 100) 2 (-50 - +50)
> Contrast 53 -"- 2 -"-
>
> Place on GIMP GIMP
> picture. values of values of
>
> || R G B R G B
>
> \/
> Red 186 30 20 27 198 26
>
> Blue 57 42 94 32 31 112
>
> White 255 255 255 255 255 255
>
> Yellow 244 190 37 255 255 47
>
> Black 9 7 6 15 22 21
>
> The windows scan looked like the original picture but the linux one
> was green on the red spots.
> For me it looks like swapping R and G would make sense.
>
> The problem is I dont know why,where and how.
> Maybe someone can help me?
>
> The /var/log/messages part of the linux scan (scan1734) is attached.
>
> Regards Göran Larsson.
