Kirsch
kdenlive-show-video Kirsch
Status :
Maintained
Keyframes :
Yes
Source library :
avfilter
Source filter :
kirsch
Available :
linux appimage windows apple
On Master only :
No
Known bugs :
No
Color depth :
10bit color-management
Tutorial :
No
Description
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.
Parameters
| Parameter | Value | Description |
|---|---|---|
| Planes | Selection | Set which planes will be processed, unprocessed planes will be copied. Default is Y. |
| Scale | Integer | Set value which will be multiplied with filtered result |
| Delta | Integer | Set value which will be added to filtered result |
The following selection items are available:
Planes
| Alpha | Alpha channel (if present) |
|---|---|
| Y (Luminance) | Luminance |
| U (Chroma) | The blue-difference chroma component |
| V (Chroma) | The red-difference chroma component |
| Red | |
| Green | |
| Blue | |
| All | Default |
[[1]]
For more (mathematical) details about this refer to the Kirsch operator article in Wikipedia. *[RGB]: Red, Green, Blue *[VFX]: Visual Effects *[feathering]: Smoothing or blurring the edges of a feature *[LFO]: Low-Frequency Oscillation *[dB]: decibel *[LUFS]: Loudness Units Full Scale *[AI]: Artificial Intelligence *[LLM]: Large Language Model *[HSV]: Hue, Saturation, Value *[SOP/Sat]: S(lope), O(ffset), P(ower) / SATuration *[CDL]: Color Decision List *[HSL]: Hue, Saturation, Lightness - Using HSL color space is useful for subtle color changes *[px]: pixel *[hh:mm:ss:ff]: hours:minutes:seconds:frames *[Hz]: Hertz