[Gstreamer-bugs] [Bug 131167] Changed - gamma correction plugin should handle RGB

bugzilla-daemon at widget.gnome.org bugzilla-daemon at widget.gnome.org
Mon Jan 12 08:29:06 PST 2004


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http://bugzilla.gnome.org/show_bug.cgi?id=131167

Changed by v.merkatz at gmx.net.

--- shadow/131167	Sun Jan 11 16:56:55 2004
+++ shadow/131167.tmp.441	Mon Jan 12 11:29:06 2004
@@ -30,6 +30,16 @@
 I tested it out, and I'm a bit worried that it doesn't work very well
 in YUV space.  That's not surprising, since gamma correction is
 typically done in RGB space, since monitors are non-linear in RGB space.
 
 I'm leaving this bug open, but retitiling it to reflect that it would
 be better to have an RGB gamma plugin.
+
+------- Additional Comments From v.merkatz at gmx.net  2004-01-12 11:29 -------
+You're right, gamma correction in rgb space looks quite a bit better,
+but since it needs several colorspace conversions to be actually
+useful it becomes too slow on my system to use it. I'll attach a first
+draft of a RGB gamma correction filter, currently limited to one rgb
+format (defined in an ugly way since i didn't find the correct way to
+do it yet). If you add this rgb gamma filter, please also leave the
+YUV one in, as people with less powerful systems may find it useful (i
+certainly do).




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