Kirsch

This effect/filter applies the Kirsch[1] operator to the input video stream. It detects edges (non-linear edge detector) and, in the default settings, colors them in yellowish green, and colors are somewhat posterized. Compare Prewitt, Roberts and Sobel effects.

The effect has keyframes.

Kirsch effect

• Planes - Set which planes will be processed, unprocessed planes will be copied. Default is Y.

• Scale - Set value which will be multiplied with filtered result

• Delta - Set value which will be added to filtered result

Notes

[1]

For more (mathematical) details about this refer to the Kirsch operator article in Wikipedia.