import random
from PIL import Image, ImageDraw #Подключим необходимые библиотеки.

def is_black(pixel):
    ok = 1
    ok &= pixel[0] < 20
    ok &= pixel[1] < 20
    ok &= pixel[2] < 20
    return ok

images = ['car.jpg', 'cat.jpg', 'dog.jpg', 'girl.jpg']
image, draw, h, w, pix = [], [], [], [], []
for i in images:
    _image = Image.open(i)
    image.append(_image)
    draw.append(ImageDraw.Draw(_image))
    w.append(_image.size[0])
    h.append(_image.size[1])
    pix.append(_image.load())


w, h = 4000, 2000
for i in range(1, 4):
    for x in range(w):
        for y in range(h):
            pixel = pix[0][x, y]
            second = pix[i][x, y]
            new_point = []
            is1, is2  = is_black(pixel), is_black(second)
            if (is1 and is2):
                new_point = (255, 255, 255)
            else: new_point = (0, 0, 0)
            draw[0].point((x, y), new_point)
#draw.point((i, j), (a, b, c))
image[0].save("ansand.jpg", "JPEG")