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* OpenCV [#vabfd1d5]

- Python, OpenCVで顔検出と瞳検出（顔認識、瞳認識）
--  https://note.nkmk.me/python-opencv-face-detection-haar-cascade/

- Training a better Haar and LBP cascade based Eye Detector using OpenCV
--  https://www.learnopencv.com/tag/eye-detector/