| Top |  |  |  |  | 
| gdouble | brightness | Read / Write | 
| gdouble | contrast | Read / Write | 
| gdouble | hue | Read / Write | 
| gdouble | saturation | Read / Write | 
GObject ╰── GInitiallyUnowned ╰── GstObject ╰── GstElement ╰── GstBaseTransform ╰── GstGLBaseFilter ╰── GstGLFilter ╰── GstGLColorBalance
Adjusts brightness, contrast, hue, saturation on a video stream.
| 1 | gst-launch-1.0 videotestsrc ! glupload ! glcolorbalance saturation=0.0 ! glcolorconvert ! gldownload ! ximagesink | 
This pipeline converts the image to black and white by setting the saturation to 0.0.
| plugin | opengl | 
| author | Matthew Waters <matthew@centricular.com> | 
| class | Filter/Effect/Video | 
| name | sink | 
| direction | sink | 
| presence | always | 
| details | video/x-raw(memory:GLMemory), format=(string)RGBA, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], texture-target=(string){ 2D, external-oes } | 
| video/x-raw(memory:GLMemory, meta:GstVideoOverlayComposition), format=(string)RGBA, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], texture-target=(string){ 2D, external-oes } | 
| name | src | 
| direction | source | 
| presence | always | 
| details | video/x-raw(memory:GLMemory), format=(string)RGBA, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], texture-target=(string){ 2D, external-oes } | 
| video/x-raw(memory:GLMemory, meta:GstVideoOverlayComposition), format=(string)RGBA, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], texture-target=(string){ 2D, external-oes } | 
“brightness” property“brightness” gdouble
brightness.
Owner: GstGLColorBalance
Flags: Read / Write
Allowed values: [-1,1]
Default value: 0
“contrast” property“contrast” gdouble
contrast.
Owner: GstGLColorBalance
Flags: Read / Write
Allowed values: [0,2]
Default value: 1
“hue” property“hue” gdouble
hue.
Owner: GstGLColorBalance
Flags: Read / Write
Allowed values: [-1,1]
Default value: 0
“saturation” property“saturation” gdouble
saturation.
Owner: GstGLColorBalance
Flags: Read / Write
Allowed values: [0,2]
Default value: 1