Edge Detection and Gradient Images¶
Edge images highlight structural boundaries and are useful as auxiliary inputs to segmentation models or for quality-control inspection. Common operators: Sobel, Prewitt, Scharr, Canny (see Edge Detection).
See also
Edge Detection — the operators themselves, in depth
Binarization and Thresholding — turning an edge/gradient image into a mask
Image Preprocessing — every other preprocessing operation