Patent ID: 7830400

Claim:
A display unit comprising: an image presentation unit receiving a plurality of monomedia data and presentation style data describing a presentation style of a frame of each of the individual monomedia data, generating scaling/combining control information for combining the individual monomedia data, and generating a composite video frame by combining the individual monomedia data; and an image enhancing unit obtaining a correction target region of designated monomedia data in the composite video frame in response to the scaling/combining control information, generating correction data by obtaining interframe difference in the correction target region, and generating a video frame by carrying out image enhancing processing of the correction target region in response to the correction data generated, wherein when the presentation style of the frame is changed, said image presentation unit generates the scaling/combining control information; and said image enhancing unit generates the video frame by carrying out the image enhancing processing of the correction target region in response to the scaling/combining control information changed, and when detecting that the presentation style of the frame is changed in response to the scaling/combining control information before and after the changes, said image enhancing unit does not carry out the image enhancing processing.