A camera phone is a mobile phone with built-in cameras. Camera phone combines a cellular telephone with a camera in a single housing or two housings hinged to be folded. Cellular phones have become an increasingly popular means of communication for today's mobile society. Phones with digital camera allow users to communicate and exchange information through pictures. People may use their camera phones to capture images, send and receive digital images. Some newly developed camera phones are also video phones, and can transmit videos and videocalls. The phone display shows a picture image taken by the camera section. The user shoots while monitoring the picture image on the main display. Due to advances in technology, the demand for mobile communication devices with built-in cameras has been increasing rapidly.