A signal processing system on chip for digital cameras

A digital still camera image processing system on chip is presented in this paper The still camera system is different from a video camera system in many aspects. In a video camera system, many problems like slight color errors, random noises and some kind of artifacts would be averaged away by freshening operation, but they would be unacceptable in a still camera system. Therefore modules on the chip like AE/AF/AWB are designed as re-constructive, so camera makers could easily use basic functions on the chip to develop their products with their special know-how. The system also can process both a primary color and a complementary color image data array