Only real images can be. In physics, real images are composed of light rays that converge to a focus for each point of the image. Thus they can be projected onto a screen. Vir
…tual images have light rays which diverge as if they had come from points behind the source. Hence a screen will just be illuminated with unfocussed light. Outside of physics, the term "image" may also refer to any visible pattern or picture, in which case "projection", "real" or "virtual" don't mean a lot, though arguably, when you look at your TV or a postage stamp what you are seeing is a virtual image even though its all about as real as any image can be! (MORE) 
