Image Subtraction Using Pillow

# Python example program for image subtraction

from PIL import Image

import numpy as np

# Paths of two image frames

image1Path = "./windshield1.jpg";

image2Path = "./windshield2.jpg";

# Open the images

image1     = Image.open(image1Path);

image2     = Image.open(image2Path);

# Get the image buffer as ndarray

buffer1    = np.asarray(image1);

buffer2    = np.asarray(image2);

# Subtract image2 from image1

buffer3    = buffer1 - buffer2;

# Construct a new Image from the resultant buffer

differenceImage     = Image.fromarray(buffer3);

# Display all the images including the difference image

image1.show();

image2.show();

differenceImage.show();