1. A still image video processing system comprising first and second video memory means each capable of storing a single frame video image, processing means for shrinking an image stored in said first memory means and storing it at a selected location in said second memory means, and combining means capable of selectively transmitting the contents of said first memory means and the contents of said second memory means to form a multiple still image display, said combining means comprising a key memory for storing a bit map and a key switch, said key switch operating under control of said bit map stored in said key memory to selectively transmit the contents of said first and second memory means to form said multiple still image display.