rescale_images.py 文件源码

def downscale(old_file_name):
    img = cv2.imread(os.path.join(old_file_name))

    new_file_name = (old_file_name
                     .replace('training', 'training_new')
                     .replace('validation', 'validation_new')
                     .replace('testing', 'testing_new')
                     )

    if 'instances' in new_file_name:
        img_new = cv2.resize(img, (new_width, new_height), interpolation=cv2.INTER_LINEAR)
    else:
        img_new = cv2.resize(img, (new_width, new_height), interpolation=cv2.INTER_CUBIC)

    cv2.imwrite(new_file_name, img_new)