This is a display driver for Framebuffer::GFX that displays on RGB Panels using https://github.com/mrcodetastic/ESP32-HUB75-MatrixPanel-DMA. It runs on top of the ...

Both your PNG libraries seem to run fine on the Portenta and Nicla Vision. I don't need to save the data to SD card I just need to convert the Arduino camera FrameBuffer to PNG and then serial.print ...