US Patent 7447354 Image transmitter, image receiver, and image transmitting system

An image transmitter, comprising: a color difference differential calculating unit configured to calculate color difference differential data relating to a difference between a current predicting value predicted based on a previous image data and current actual image data; a coding unit configured to code the color difference differential data to generate coding data; a multi-valuation unit configured to generate multi-valued data based on the coding data and an occurrence probability of the coding data based on statistical properties of the image data; and a transmitting unit configured to transmit the multi-valued data via at least one transmission line.