Tweak saturation curve (fix #7655)

qgis · Apr 29, 2013 · 6e90ba3 · 6e90ba3
1 parent 27c5b93
commit 6e90ba3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/core/raster/qgshuesaturationfilter.cpp b/src/core/raster/qgshuesaturationfilter.cpp
@@ -305,7 +305,7 @@ void QgsHueSaturationFilter::processSaturation( int &r, int &g, int &b, int &h,
       {
         // Raising the saturation. Use a saturation curve to prevent
         // clipping at maximum saturation with ugly results.
-        s = qMin(( int )( 255. * ( 1 - pow( 1 - ( s / 255. )  , mSaturationScale * 2 ) ) ), 255 );
+        s = qMin(( int )( 255. * ( 1 - pow( 1 - ( s / 255. )  , pow( mSaturationScale, 2 ) ) ) ), 255 );
       }
 
       // Saturation changed, so update rgb values