Abstract: The present invention relates to an image processing method of a pointer input system. In the image processing method, a color channel image is generated from an image pickup device, so that image processing capability, the image processing efficiency and the data transmitting speed of the pointer input system are enhanced.

Abstract: The present invention relates to an input method of a pointer input system. A setting procedure and a correcting procedure having been performed on the pointer input system to obtain a space conversion relationship and an over-bright position. The input method includes steps of inputting at least a light spot into a projection screen, capturing the light spot by a photosensing system to obtain a light-spot image, recognizing at least a relevant light spot of the light-spot image by checking whether the light-spot image excluding the over-bright position complies with a light-spot characteristic situation so as to obtain at least a light-spot data, and converting the at least a light-spot data into at least an input data of a data processing system according to the space conversion relationship.

Abstract: The present invention relates to an image processing method of a pointer input system. In the image processing method, a color channel image is generated from an image pickup device, so that image processing capability, the image processing efficiency and the data transmitting speed of the pointer input system are enhanced.