> For the complete documentation index, see [llms.txt](https://inan.gitbook.io/rich-fx-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://inan.gitbook.io/rich-fx-documentation/effects/edge-effects/edge-detection.md).

# Edge Detection

![Edge Detection](https://2065380603-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M5fuxyrZmxqeHTavJYV%2F-M5mMfmS7AdK42dBFUjh%2F-M5mRFnZvpu2N3pk0xgG%2FBuild%20Screenshot%202020.04.25%20-%2015.53.09.53.png?alt=media\&token=c3c9e0c4-b400-4e2f-b6f9-04c3c3cff1aa)

This effect applies a simple edge detection on the edges with a sketchy look.

| Parameter | Description                                                           |
| --------- | --------------------------------------------------------------------- |
| Threshold | Threshold for detecting edges, lower means more edges to be detected. |