Framebuffer with requested attributes not available. Using available framebuffer. You may see visual artifacts.OpenCV Error: Assertion failed (size.width>0 && size.height>0) in imshow, #72 Open ...

This code is a quick trial of a 640x480 framebuffer using the RPi scanvideo code https://github.com/raspberrypi/pico-extras/tree/master/src/common/pico_scanvideo ...

I’ll explain how to do framebuffer screenshots on 16-bit and 32-bit framebuffer. For 16-bit this is fully based on http://docs.blackfin.uclinux.org/doku.php?id ...