edgedetect


Detect and draw edges. The filter uses the Canny Edge Detection algorithm.

The filter accepts the following options:

'low'
'high'

Set low and high threshold values used by the Canny thresholding algorithm.

The high threshold selects the "strong" edge pixels, which are then connected through 8-connectivity with the "weak" edge pixels selected by the low threshold.

low and high threshold values must be chosen in the range [0,1], and low should be lesser or equal to high.

Default value for low is 20/255, and default value for high is 50/255.

'mode'

Define the drawing mode.

'wires'

Draw white/gray wires on black background.

'colormix'

Mix the colors to create a paint/cartoon effect.

'canny'

Apply Canny edge detector on all selected planes.

Default value is wires.

'planes'

Select planes for filtering. By default all available planes are filtered.