Shake - EdgeDetect

EdgeDetect

Function
The EdgeDetect function is great for pulling out and massaging edges. You can control what is detected, the strength of the edge, and the ability to expand or soften the edge.

Parameters	Type	Defaults	Function
strength	float	1	A gain on the filter. The more strength, the more details will appear. Numbers are practically from 1 to 10, but you can go much higher.
threshold	float	0	Pixels below the threshold will not be revealed in the filter and will turn black. The range is 0 to 1.
binaryOutput	int	0	When this is on, there is no greyscale, only black and white pixels.
directionFilter	int	0	This will turn on an effect similar to Emboss.
directionFilterAngle	float	0	The lighting angle. This only is in effect when directionFilter is on.
despeckle	int	0	Similar to a Median filter, this will clean up isolated pixels to the despeckle radius.
x,yBlur	float	0	Blurs the result.
x,yDilateErode	float	0	Applies the DilateErode effect to the first filter pass.
rgbEdges	int	0	Inherits color from the input image instead of just black-and-white.
addEdgesToImage	int	0	Mixes the filter result back into the input image.
method	string	"Sobel"	Your choices are "Sobel" , "Babu" or “Fast.” Note: Babu is an algorithm that is extremely slow and cannot be used on large (2k+) plates. It is maintained for compatibility purposes.
babuSteps	int	8	The steps done for the Babu filter. The more steps you add, the slower it goes. For example, if you put 12 steps, it will go much much slower.
bytes	int	1	Output bit depth.

Synopsis

image EdgeDetect( 
  image In, 
  float strength,
  float threshold,
  int binaryOutput,
  int directionFilter,
  float directionFilterAngle,
  int despeckle,
  float xBlur,
  float yBlur,
  float xDilateErode,
  float yDilateErode,
  int rgbEdges,
  int addEdgesToImage,
  const char * method,
  int babuSteps,
  int bytes  
);

Script

image EdgeDetect( 
  In, 
  strength,
  fthreshold,
  binaryOutput,
  directionFilter,
  directionFilterAngle,
  despeckle,
  xBlur,
  yBlur,
  xDilateErode,
  yDilateErode,
  rgbEdges,
  addEdgesToImage,
  "method",
  babuSteps,
  bytes  
);

Command Line

shake -edgedetect strength