OpenCV vs PIL/Pillow: which is better for image processing tasks?

Pillow handles everyday image tasks with far less code than OpenCV, while OpenCV is the stronger pick once the job involves video, real-time capture, or algorithms beyond basic editing. Pillow reads and writes more than 30 image file formats out of the box; OpenCV ships over 2,500 functions but expects images as NumPy arrays in BGR channel order instead of the RGB order Pillow uses.