SETUP_VFILTER( extract )
SETUP_VFILTER_OPTION( extractComponentText, textChanged( const QString& ) )
+ SETUP_VFILTER( posterize )
+ SETUP_VFILTER_OPTION( posterizeLevelSpin, valueChanged( int ) )
+
SETUP_VFILTER( colorthres )
SETUP_VFILTER_OPTION( colorthresColorText, textChanged( const QString& ) )
SETUP_VFILTER_OPTION( colorthresSaturationthresSlider, valueChanged( int ) )