Given the following images, I want to detect the location of the marker.
 
- **GOAL:** find center of marker
- no scale or rotation required
- 240x240 video feed running at around ~60fps
- implementation should be as light-weight as possible
- accuracy is not too important
What combination of OpenCV functionality would you recommend?
What I tried so far:
- Detect contours, find rectangles and match them based on corners, this is too heavy though
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