Reading and writing images

In computer vision projects, images are commonly used as command-line arguments in our scripts. In the following sections, we are going to see how we can read and write images.

Reading images in OpenCV

The following example, argparse_load_image.py, shows you how to load an image:

# Import the required packages
import argparse
import cv2

# We first create the ArgumentParser object 
# The created object 'parser' will have the necessary information
# to parse the command-line arguments into data types.
parser = argparse.ArgumentParser()

# We add 'path_image' argument using add_argument() including a help. The type of this argument is string (by default)
parser.add_argument("path_image...