Questions tagged [edge-detection]

For questions related to edge detection algorithms in image processing and computer vision.

4 questions
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Is a Sobel filter for edge detection a type of Cellular Neural Network?

I have implemented a Sobel filter for edge detection in Matlab without using its toolbox. I am a bit confused: Is a Sobel filter a type of Cellular Neural Network? Both Sobel and Cellular Neural Network calculate output via its neighborhood cells.
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How to identify and diferentiate several edge lines of an object?

I want to create an AI to detect and identify certain edge lines on my image. The input image is a locker key, and I want to know the exact position of certain edges. Sample input image: Sample output image. As output i have each red line…
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How can traditional edge detection algorithms be implemented on a GPU?

How can edge detection algorithms, which are not based on deep learning, such as the canny edge detector, be implemented on a GPU? For example, how are non-edge pixels removed from an image once it detects all the edges? The reason why I am asking…
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Opinion and understanding of a PR curve

I'm currently working on a model for edge detection. For the evaluation, I use this repo : https://github.com/Walstruzz/edge_eval_python I obtain this PR curve : I don't understand why the curve is increasing and then decreasing, because I thought…
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