colab_utils.py

import os
import requests
import io
import matplotlib.pyplot as plt
import matplotlib.image as mpimg

def show_images_side_by_side(left_images_path, right_images_path):
    if len(left_images_path) != len(right_images_path):
        raise Exception("Size must be identical")

    for n in range(len(left_images_path)):
        # read images
        img_A = mpimg.imread(left_images_path[n])
        img_B = mpimg.imread(right_images_path[n])
        # display images
        fig, ax = plt.subplots(1, 2)
        ax[0].imshow(img_A)
        ax[1].imshow(img_B)
        
# example image url: https://m.media-amazon.com/images/S/aplus-media/vc/6a9569ab-cb8e-46d9-8aea-a7022e58c74a.jpg
def download_image_and_save(url, image_file_path, verbose=False):
    r = requests.get(url)
    if r.status_code != requests.codes.ok:
        assert False, 'Status code error: {}.'.format(r.status_code)

    with Image.open(io.BytesIO(r.content)) as im:
        im.save(image_file_path)

    if verbose:
        print('Image downloaded from url: {} and saved to: {}.'.format(url, image_file_path))