Patent ID: 8295619

Claim:
An image processing apparatus, comprising: a storage device; an image detection circuit, for generating a compression mode control signal according to a first frame; a compression circuit, coupled to the storage device and the image detection circuit, for compressing an image data of a second frame according to the compression mode control signal and accordingly generating a compressed image data of the second frame to the storage device, wherein the first frame precedes the second frame; a decompression circuit, coupled to the storage device and the image detection circuit, for reading the compressed image data of the second frame from the storage device, and decompressing the compressed image data of the second frame according to the compression mode control signal and accordingly generating a recovered image data of the second frame; and an overdrive processing circuit, coupled to the decompression circuit, for determining overdrive voltages of a third frame according to an image data of the third frame and the recovered image data of the second frame, wherein the second frame precedes the third frame.