Building Computer Vision Projects with OpenCV 4 and C++

Using the Raspberry Pi Camera Module

While using a USB webcam on Raspberry Pi has the convenience of supporting identical behavior and code on the desktop as on an embedded device, you might consider using one of the official Raspberry Pi Camera Modules (referred to as the Raspberry Pi Cams). They have some advantages and disadvantages over USB webcams.

The Raspberry Pi Cams use the special MIPI CSI camera format, designed for smartphone cameras to use less power. They have a smaller physical size, faster bandwidth, higher resolutions, higher frame rates, and reduced latency compared to USB. Most USB 2.0 webcams can only deliver 640 x 480 or 1280 x 720 30 FPS video since USB 2.0 is too slow for anything higher (except for some expensive USB ...