api.py 文件源码

def adjust_brightness(image, brightness):
    if (brightness < 0):
        brightness = 0
    elif (brightness > 200):
        brightness = 200
    brightness = (((brightness) * (510)) / 200) - 255
    img = image.astype(np.float) + brightness
    img[img > 255] = 255
    img[img < 0] = 0
    return img.astype(np.ubyte)