On Sat, 2006-12-02 at 00:41 +0100, Maciej Piechotka wrote:
> On Fri, 01 Dec 2006 07:11:35 +0100, Gerhard Jaeger
wrote:
>
> > On Friday 01 December 2006 00:21, Maciej Piechotka
wrote:
> >> I have probably not calibrated scanner (If I
scan something it returns
> >> blue sheet). How can I do it?
> >>
> >
> > RTFM - SCNR ;)
> > The status of this device says: Scans, but no
calibration is performed and
> > the area selection is limited.
> >
> > There's no way for you to do the calibration, as
the backend itself is not
> > able to handle this - sorry
> >
> > Gerhard
> >
> >
>
> Sorry I asked in such way - is it possible to make it
working (after give
> some values from hand)?
>
> If I understand you it's also[1] impossible by
operating in such values as
> R/G/B Brightness and so on in xsane or any other
front-end) - am I correct?
>
> Regards
>
> [1] As I said I thought I could give some values to
make it working and
> it's just automatized process.
>
> --
> I've probably left my head... somewhere. Please wait
untill I find it.
> Homepage (pl_PL): http://uzytkownik.jogger
.pl/
> (GNU/)Linux User: #425935 (see http://counter.li.org/)
>
>
If you see the frontend menu for this scanner (xscanimage or
xsane) the
only fields for some "color" correction are maybe
the gamma value and/or
selecting the red, green or blue (gray mode color).
To get the calibration into the backend some usb sniff or
usb log is
needed using the calibration sheet and then writing program
code for it.
I don't know if somebody already made some usb sniff/log
file?
I have placed on my page some info and a sample of the
calibration card
for this scanner see http://gk
all.hobby.nl/gt6816-07b3-0412.html
--
--------
m.vr.gr.
Gerard Klaver
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