To make use of the SD Card slot, you need to have a MicroSD Card formatted with the FAT32 file system. The V5 Brain only supports .bmp and .png files, so you won’t be able to draw any JPEG images.
C++
// image.png is in the root directory of the SD card
// 0, 0 are the x and y pixel coordinates where the image will be drawn
Brain.Screen.drawImageFromFile("image.png", 0, 0);
Python:
brain.screen.draw_image_from_file(“image.bmp”, 0, 0)