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I am looking for a solution to identify a quadrangle of a scanned ID card in OpenCV-Python, as given in the image below. Any solution/suggestion is appreciated.

enter image description here

Buoy Rina
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  • Does this answer your question? https://stackoverflow.com/questions/46486078/opencv-how-to-find-rectangle-contour-of-a-rectangle-with-round-corner –  Sep 19 '21 at 01:20

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This is essentially a duplicate of this question. So I would recommend you read that thread.

I would recommend reading that first and then attempting to solve the problem. If you have more specific questions then I would post those to StackOverflow after you try to figure them out yourself. As your question stands currently I believe it isn't a good fit for this site as it is far too broad and doesn't show any research or attempt to address the issue yourself, but good luck!

tomking
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