Histogram Equalization, Opencv Python, Histogram Manipulation, Image Enhancement, Opencv.
https://stackoverflow.com/questions/32838802/numpy-with-python-convert-3d-array-to-2d https://techtutorialsx.com/2018/06/02/python-opencv-converting-an-image-to-gray-scale/ https://docs.opencv.org/3.4/d4/d1b/tutorial_histogram_equalization.html