An MPEG decoding circuit (20) receives encoding image data, generates decoding image data according to motion information, and outputs the generated decoding image data to a motion adaptive image processing section (34). Moreover, the MPEG decoding circuit (20) supplies the motion information to a time axis correction circuit (31). The time axis correction circuit (31) supplies the motion information to a motion adaptive image processing section (34) in accordance with the timing when the decoding image data using the motion information is supplied from the MPEG decoding circuit (20) to the motion adaptive image processing section (34). The motion adaptive image processing section (34) judges whether the image data being processed according to the motion information is a moving picture orastill picture and selects and executes image processing appropriate for each of them.