1. An image processor system comprising: a processor that generates a blended image from a plurality of image layers in accordance with at least one α-layer independent from image color, the α-layer assigned to one of the plurality of image layers that indicates a transparency of image areas of the assigned image layer; a transparency table including a plurality of transparency values; a memory coupled with the processor for storing the transparency table; a pointer associated with an image area of the assigned image layer that refers to an address of the memory to assign a transparency value to the image area, where the α-layer assigned to one of the plurality of image layers retains the pointer for referencing the transparency table stored in the memory; and an adder that adds an offset valve to the pointer, where the transparency values in the transparency table are organized in groups that are stored, at address intervals, where a change to the offset value changes the group of transparency values that are referred to by the pointer, further where each of the offset values added to the pointer references a different one of the groups of transparency values, where a transparency change effect is performed by specifying a different offset value.