How to Crop Image Using OpenCV in Python

The opencv module provides different tools and functionalities for Computer Vision. We have different functions available to read and process images.

This tutorial will demonstrate how to crop an image using the opencv module in Python.

Images are stored as NumPy arrays. To crop images, we can use NumPy slicing to slice the arrays.

For example,

import cv2

img = cv2.imread("sample.png")
cropped = img[y : y + h, x : x + w]
cv2.imshow("cropped", cropped)

In the above example, the imread() function reads the image. We crop the image using NumPy slicing. Finally, we display the cropped image using the imshow() function.