how to compute pixel difference based upon gradient direction of an image

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Ram 2016-6-20

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评论： Ram 2016-6-27

based on four different directions need to compute pixel difference satisfying threshold value

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Image Analyst 2016-6-26

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https://ww2.mathworks.cn/matlabcentral/answers/291036-how-to-compute-pixel-difference-based-upon-gradient-direction-of-an-image#answer_226759

I don't understand your question. But you might start with imgradient() or imgradientxy().

for image 256*256 calculated edge pixel and corresponding gradient direction such as 0,45,-45,-90 now for every edge pixel i need to calculate pixel difference based upon their corresponding direction and if the difference satisfy threshold value then need to store those pixel values. Please help in this regard

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