Introduction - If you have any usage issues, please Google them yourself
Compass operator performance over the Canny operator, compared to other operators, it is replaced with the pixel color distribution of the mean diameter of the use of EMD compass to find the direction from the direction of the diameter of the circular window can be maximized diameter separated halves regional differences, in this direction is the edge direction, two semicircular area is the edge of the degree of difference between the amplitude, which constitute the vector, similar to the gradient, for detecting the edges, corners, and junctions.