1. An image processor that generates a blended image from a plurality of image layers in accordance with at least one α-layer, the α-layer assigned to one of the plurality of image layers that indicates a transparency of image areas of the assigned image layer comprising: a memory for storing a transparency table including a plurality of transparency values, where the α-layer includes a pointer associated with an image area of the assigned image layer; and the pointer refers to an address of the memory to assign a transparency value to the image area.