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| 2016-05-26 06:56:24 -0600 | commented answer | Python-openCV: Extracting (x,y) coordinates of point features on an image Hi berak ! that was very helpful! thank you so much. My concern is with the live feed video stream ouputting a 'not-so-perfect' plank' and what if the case where there actually isn't only 4 corners(could be more or less) in the image frame. I have edited the original question with extra images that I took in the environment we will be testing in. |
| 2016-05-25 09:00:12 -0600 | asked a question | Python-openCV: Extracting (x,y) coordinates of point features on an image Hi all, I am trying to extract the (x,y) coordinates of the the four corners of a wooden rectangular plank image and apply that to a real-time video feed. What I have in mind is: 1) read image and apply Harris Corner Dectection(HCD) to mark out 4 red points. 2) Search for red points on the image and output an array giving the (x,y) coordinates I have no idea how to implement step 2 at the moment, and with regard to step 1, I have no idea how the HCD knows which pixel to mark out on. Is there a way I can extract the coordinate information?
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