G22-2021

A linearly increasing intensity controller parameter ‘I’ range from 0 to 1 should be used to achieve a smooth gamma correction. It was incorrect to raise every RGB value in each pixel to the power of gamma.

def gammaCorrection(img, direction, gamma):

    if direction == 'left':
        for rows in range(getImageHeight(img)):
            for columns in range(getImageWidth(img)-overlap_pixels-1, getImageWidth(img)):
                img[rows][columns][:] *= np.power(intensityController(
                    columns-(getImageWidth(img)-overlap_pixels-1), monotonicity='increase'), gamma)
        return img

    elif direction == 'right':
        for rows in range(getImageHeight(img)):
            for columns in range(overlap_pixels-1):
                img[rows][columns][:] *= np.power(
                    intensityController(columns, monotonicity='decrease'), gamma)
        return img