frei0r-filter-curves
Adjust luminance or color channel intensity with curve level mapping
Hierarchy
GObject ╰──GInitiallyUnowned ╰──GstObject ╰──GstElement ╰──GstBaseTransform ╰──GstVideoFilter ╰──frei0r-filter-curves
Factory details
Authors: – Sebastian Dröge
Classification: – Filter/Effect/Video
Rank – none
Plugin – frei0r
Package – GStreamer Bad Plug-ins
Pad Templates
sink
video/x-raw:
format: RGBA
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
src
video/x-raw:
format: RGBA
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
Properties
b--zier-spline
“b--zier-spline” gchararray
Use cubic Bézier spline. Has to be a sorted list of points in the format "handle1x;handle1y#pointx;pointy#handle2x;handle2y"(pointx = in, pointy = out). Points are separated by a "|".The values can have "double" precision. x, y for points should be in the range 0-1. x,y for handles might also be out of this range.
Flags : Read / Write
channel
“channel” gdouble
Channel to adjust (0 = red, 0.1 = green, 0.2 = blue, 0.3 = alpha, 0.4 = luma, 0.5 = rgb, 0.6 = hue, 0.7 = saturation)
Flags : Read / Write
Default value : 0.5
curve-point-number
“curve-point-number” gdouble
Number of points to use to build curve (/10 to fit [0,1] parameter range). Minimum 2 (0.2), Maximum 5 (0.5). Not relevant for Bézier spline.
Flags : Read / Write
Default value : 0.2
graph-position
“graph-position” gdouble
Output image corner where curve graph will be drawn (0.1 = TOP,LEFT; 0.2 = TOP,RIGHT; 0.3 = BOTTOM,LEFT; 0.4 = BOTTOM, RIGHT)
Flags : Read / Write
Default value : 0.3
luma-formula
“luma-formula” gboolean
Use Rec. 601 (false) or Rec. 709 (true)
Flags : Read / Write
Default value : true
point-1-input-value
“point-1-input-value” gdouble
Point 1 input value
Flags : Read / Write
Default value : 0
point-1-output-value
“point-1-output-value” gdouble
Point 1 output value
Flags : Read / Write
Default value : 0
point-2-input-value
“point-2-input-value” gdouble
Point 2 input value
Flags : Read / Write
Default value : 1
point-2-output-value
“point-2-output-value” gdouble
Point 2 output value
Flags : Read / Write
Default value : 1
point-3-input-value
“point-3-input-value” gdouble
Point 3 input value
Flags : Read / Write
Default value : 0
point-3-output-value
“point-3-output-value” gdouble
Point 3 output value
Flags : Read / Write
Default value : 0
point-4-input-value
“point-4-input-value” gdouble
Point 4 input value
Flags : Read / Write
Default value : 0
point-4-output-value
“point-4-output-value” gdouble
Point 4 output value
Flags : Read / Write
Default value : 0
point-5-input-value
“point-5-input-value” gdouble
Point 5 input value
Flags : Read / Write
Default value : 0
point-5-output-value
“point-5-output-value” gdouble
Point 5 output value
Flags : Read / Write
Default value : 0
show-curves
“show-curves” gboolean
Draw curve graph on output image
Flags : Read / Write
Default value : true
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