The Outline (Sobel) effect runs a Sobel edge-detection kernel over the image.

Sobel Outlines

Parameters

  • Enabled - Is the effect active?
  • Threshold - How sensitive the edge-detection algorithm is.
  • Outline Color - Color to use for edge pixels.
  • Background Color - Color to use for all non-edge pixels. If you make this color transparent, the original image will appear underneath the outlines.