I have conducted research in exactly this. Their results would likely be much mo... | Hacker News

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		josephpmay on March 4, 2014 \| parent \| context \| favorite \| on: Image Background Removal I have conducted research in exactly this. Their results would likely be much more accurate by applying Canny edge detection instead of the simpler Sobel edge detection

JanSt on March 4, 2014 [–]

Canny edge detection uses Sobel in most cases as a first or second step (after blurring) and adds a non-maximum suppression + hysteresis thresholding - You do most probably know that, just wanted to clarify that it's not really "instead".

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