Patent ID: 8749708

Claim:
A moving image processing apparatus which concentrates high-frequency components in image data for one frame on a first sub-frame, and distributes low-frequency components to the first sub-frame and a second sub-frame upon generating image data of two sub-frames based on the image data for one frame, said apparatus comprising: an extraction unit configured to extract low-frequency components L from image data of a frame of interest; a distribution unit configured to decide a distribution of second low-frequency components L 2 in the low-frequency components L so as to distribute the low-frequency components L to the first sub-frame SH and the second sub-frame SL as first low-frequency components L 1 and the second low-frequency components L 2 ; a first sub-frame generation unit configured to generate the first sub-frame SH as a sum of the first low-frequency components L 1 in the low-frequency components L and high-frequency components H in the frame of interest by subtracting the second low-frequency components L 2 from the image data of the frame of interest; and a second sub-frame generation unit configured to generate the second sub-frame SL based on the second low-frequency components L 2 , wherein when a level of the low-frequency components L falls in a low-level region in which the level is lower than a predetermined boundary level, said distribution unit sets a distribution rate of the second low-frequency components L 2 to be relatively smaller than when the level of the low-frequency components L falls within a high-level region in which the level is higher than the boundary level, and when the level of the low-frequency components L falls within the high-level region, said distribution unit sets the distribution rate of the low-frequency components L 2 to be relatively larger within a range that does not exceed 0.5 than when the level falls within the low-level region.