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digital_image_processing/change_brightness.py
26 строк
751 B
Furkan Atesli
Create change_brightness.py (#2126)
17 июн 2020, 08:49
Не верифицирован
17 июн 2020, 08:49
6f80ca8
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from PIL import Image def change_brightness(img: Image, level: float) -> Image: """ Change the brightness of a PIL Image to a given level. """ def brightness(c: int) -> float: """ Fundamental Transformation/Operation that'll be performed on every bit. """ return 128 + level + (c - 128) if not -255.0 <= level <= 255.0: raise ValueError("level must be between -255.0 (black) and 255.0 (white)") return img.point(brightness) if __name__ == "__main__": # Load image with Image.open("image_data/lena.jpg") as img: # Change brightness to 100 brigt_img = change_brightness(img, 100) brigt_img.save("image_data/lena_brightness.png", format="png")