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In this course we’ll build an app that can detect and recognize playing cards using Python and OpenCV. This app will detect that there is a playing card in an image, it grab all the cards it finds and reorients them.
There are two main concepts that will be covered in this course. One of them is thresholding, which is a technique of image segmentation. The second one is contour detection.
- Binary thresholding
- Inverted binary thresholding
- Contour detection:
- Curve approximation
- Contour hierarchy
- Polygon approximation