The gradient Non-maximum suppression also known as edge thinning is a process of extracting thin, one pixel wide object’s contours. This process follows gradient detection as a post processing step. […]Read: "Gradient Non-Maximum Suppression"
The Sobel filter (also called Sobel-Feldman operator) is an edge detection filter, that results in image emphasizing edges. Computer vision and image processing applications frequently use this filter to extract image […]Read: "Sobel Filter – Sobel-Feldman Edge Detection and Gradient Extraction"