get PIL white noise image

white_noise_image.py

from PIL import Image

def get_white_noise_image(width, height):
    pil_map = Image.new("RGBA", (width, height), 255)
    random_grid = map(lambda x: (
            int(random.random() * 256),
            int(random.random() * 256),
            int(random.random() * 256)
        ), [0] * width * height)
    pil_map.putdata(random_grid)
    return pil_map

thanks

if you use python3: pil_map.putdata(list(random_grid))

It is much cheaper to do:

from PIL import Image
def get_white_noise_image(w,h):
    pil_map = Image.fromarray(np.random.randint(0,255,(w,h,3),dtype=np.dtype('uint8')))
    return pil_map