IMAGE ENCODING METHOD AND DEVICE, RECORDING MEDIUM RECORDING IMAGE ENCODING PROGRAM, IMAGE DECODING METHOD AND DEVICE AND RECORDING MEDIUM RECORDING IMAGE DECODING PROGRAM

摘要

PROBLEM TO BE SOLVED: To perform motion compensation to the entire screen and brightness change compensation to the entire screen by the operation amount of the same level as a normally and widely used moving image encoding method. SOLUTION: The motion signal 137 of an area image is prepared from the area image 131 and a storage image 136. The motion compensation is performed from the storage image 136 and the motion signal 137 and a prediction image signal 140 is generated. The motion of the entire image is detected from the motion signal 137 and the motion signal 142 is generated. The motion compensation of an area is performed from the storage image 136 and the motion signal 142 and the prediction image signal 143 is generated. A luminance change compensation image signal is generated the motion compensation of it is performed and the prediction image signal 141 is generated. The motion compensation of the luminance change compensation image signal is performed and the prediction image signal 144 is generated. One signal 145 is selected from the prediction images 140, 143 and 144 and the luminance change compensation image signal 341 in a mode selection part 112 and subtracted from the area image 131 in an addition part 113.