Introduction - If you have any usage issues, please Google them yourself
Note code P0401: using Prewitt operator image edge detection P0402: different σ values LoG operator image edge detection P0403: using Canny edge detection image edge P0404: Image Thresholding P0405: water line threshold Law partition image P0406: on the matrix decomposition quadtree P0407: text and images are divided into two categories of non-text P0408: Morphological Gradient detection binary image edge P0409: Morphological examples- from the PCB to remove all images current lines, retaining only the target chip