Digital still photography has experienced exponential growth in recent years. This is primarily due to a series of technical improvements and price reductions that have made the technology more appealing to the mass market and professionals alike. Parallel growth has been taking place in digital video, and the most recent cameras can be used to capture high-resolution still images or to make lower-resolution video recordings. In addition, the use of digital photography has been increasing in a host of other imaging applications such as surveillance, astronomy, and medical imaging.