Creates an edge-detection effect by examining the luminance of an image to render high contrast borders between regions of brightness. These edges are then traced, and all other detail is replaced by black. The amount of eliminated detail depends on the value of the Intensity parameter. The colors of the resulting highlights are intensified variants of the colors from the original image.
Adjust this filter using the parameter controls in the Filters Inspector:
Intensity: Sets the intensity of the edges.
Mix: Sets the percentage of the original image to be blended with the filtered image.