A camera module of image processing and a method for integrating the camera module with a host are described. The camera module has a display control interface, an image sensor, and a camera control circuit. The display control interface is used to control at least one display module. The image sensor is used to capture image and provide image data signals. The camera control circuit is used to control the camera module. The camera module bypasses the display data signals of a host to display control modules according to a bypass signal. The camera module also performs image processing according to the bypass signal and a command set.