TEdgeMask is an edge detection filter.
This is a port of the TEdgeMask/TEMmod Avisynth plugins.
tedgemask.TEdgeMask(clip clip, [float[] threshold=8.0, int type=2, int link, float scale=1.0, int[] planes=<all>, bint opt=True])
- Parameters:
- clip
- A clip to process. It must have constant format, 8..16 bit integer sample type, and subsampling ratios of at most 2.
- threshold
Sets the magnitude thresholds.
If over this value then a sample will be considered an edge, and the output pixel will be set to the maximum value allowed by the format. Otherwise the output pixel will be set to 0.
Set this to 0 to output a magnitude mask instead of a binary mask.
Default: 8.0 for the first plane, and the previous plane's threshold for the other planes.
- type
Sets the type of first order partial derivative approximation that is used.
1 - 2 pixel.
2 - 4 pixel.
3 - Same as type = 1.
4 - Same as type = 2.
5 - 6 pixel (Sobel operator).
Default: 2.
- link
Specifies whether luma to chroma linking, no linking, or linking of every plane to every other plane is used.
0 - No linking. The three edge masks are completely independent.
1 - Luma to chroma linking. If a luma pixel is considered an edge, the corresponding chroma pixel is also marked as an edge.
2 - Every plane to every other plane. If a pixel is considered an edge in any plane, the corresponding pixels in all the other planes are also marked as edges.
This parameter has no effect when clip is GRAY, when any plane's threshold is 0, or when some planes are not processed.
This parameter can only be 0 or 2 when clip is RGB.
Default: 2 when clip is RGB, otherwise 1.
- scale
If the output is a magnitude mask (threshold is 0), it is scaled by this value.
Note that in TEMmod this parameter had three different, undocumented default values for the different mask types, which made it difficult to use the parameter without reading the source code.
Default: 1.0.
- planes
Select which planes to process. Any unprocessed planes will be copied.
Default: all the planes.
- opt
If True, the best optimised functions supported by the CPU will be used. If False, only scalar functions will be used.
Default: True.
meson build && cd build ninja
GNU GPL v2, like the Avisynth plugins.