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I've looked into the Keypoint class but there are no attributes relative to the color of the keypoint. Is there a way to store the color of each keypoint that has been detected with SURF or SIFT? I understand that Keypoint coordinates are float but is there a ways to get an approximate color for that Keypoint maybe based on the color of the pixel it's inside or the neighboring ones?

Sam
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    Something like this? https://stackoverflow.com/questions/13299409/how-to-get-the-image-pixel-at-real-locations-in-opencv – beaker Aug 16 '17 at 23:52
  • Thank you! I didn't see that thread while searching. That solves my question. – Sam Aug 18 '17 at 19:17
  • Cool, I wasn't sure that was exactly what you were looking for. I'll go ahead and suggest it as a duplicate. – beaker Aug 18 '17 at 19:21

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