Question
i want to compute non directional edge of an image block, how i can compute, the simple edge method, will return non directional edge? if no please suggest me the solution
Expert Answer
John Williams
PhD Expert
Answered Aug 15, 2026
You can convolve with the Laplacian, which is like the average edge over all 4 directions (vertical, horizontal, and the two diagonals).
kernel = [-1, -1, -1; -1, 8, -1; -1, -1, -1]; highPassFilteredImage = conv2(double(originalGrayImage), kernel, 'same');
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