contrastImage.py

def upcontrastImage(image):
        hist = histogram.histogram(image) 
        stretched_hist = histogram.eq_hist(hist, 256, image.size)

        enhanced_image = np.zeros(shape = image.shape)
        height = len(image)
        width = len(image[0])
        for row in range(height):
                for col in range(width):
                        enhanced_image[row, col] = stretched_hist[image[row, col]]
        return enhanced_image