[sane-devel] Gamma tables causes distorsions : bug fixed ???

[Oliver Rauch]

Hello Aurelien Jarno,

if you are talking about a bug in xscanimage:
The bug is not a bug in xscanimage, it is a bug
in the gamma widget of gtk. The bug never was fixed and
the widget is not supported by the gtk team any more,
it still exists in the old form and will be removed one
day.

Bye
Oliver

Aurelien Jarno schrieb:
> 
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> Hi all,
> 
> A long time ago, there was a bug report submitted against sane 0.71-2
> via the Debian BTS. It was a problem with custom gamma table which
> causes undesired distortions :
> 
> | I have simply set the image intensity to about 1.5 and the red
> | intensity to about 1.2.  Whenever some very bright part of the
> | picture is scanned, it is not read in as white but rather as some
> | other color such as a light blue, yellow, green, or red.  The white
> | scanner background is almost a solid black.  This phenomenon persists
> | both in the prevue and the final scan.
> 
> The answer was :
> 
> | This problem is known:
> | if you increase the size of the window in which the gamma-curve is
> | displayed it could get better!
> 
> I have looked up in the changelog and in the source code, the mailing
> list archives, and I haven't found any trace about a fix for this bug.
> However, I failed to reproduce this bug on my computer.
> 
> Did anybody remember if this bug was fixed or not ?
> 
> Thanks for your help,
> Aurelien Jarno
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-- 
Homepage:	http://www.rauch-domain.de
sane-umax:	http://www.rauch-domain.de/sane-umax
xsane:		http://www.xsane.org
E-Mail:		mailto:Oliver.Rauch at rauch-domain.de