I'm new to opencv so sorry if this question seems stupid. I would like to find marker #1 for example in my image detect marker. I have limited my search area to multiple ROIs (squares) then I cropped my image to the ROIs and transformed it using houghlines and warpaffine. For now only the first square is displayed. I would like to go through each ROI, match them with my template, skip bad matches and only return the best match (maybe with a percentage). Is this possible only using matchTemplate or is there maybe a better method to look for a specific marker after finding the squares in my image?
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If you use matchTemplate you have to deal yourself with rotation and scale, but it seems a viable approach. Or you can have a look at [opencv - aruco](http://docs.opencv.org/master/d9/d6d/tutorial_table_of_content_aruco.html#gsc.tab=0) – Miki Jan 17 '16 at 23:19
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Thx. Is there maybe a way to rotate my countours before cropping them? – A.Ul Jan 18 '16 at 12:43