Patent ID: 8532468

Claim:
A moving image data editing apparatus for applying masking to a portion of an image by editing moving image data in which each frame is divided into pixel blocks of a predetermined size and encoded on a pixel block basis, comprising: pixel block extracting means for extracting from an input data stream of said moving image data a pixel block that is located within a region to which said masking is to be applied; fixed pattern inserting means for inserting precoded fixed pattern data into a position in said input data stream at which said extracted pixel block was originally located; so as to superimpose said fixed pattern data in said input data stream at said region from which said extracted pixel block is extracted; and pixel block inserting means for inserting said extracted pixel block as user data into a user data area in said input data stream from which said extracted pixel blocked was extracted, wherein said user data area is different than a storage area provided to store video data, wherein said input data stream includes, for each frame, said user data area, and wherein said pixel block inserting means inserts said extracted pixel block into said user data area of the original frame from which said pixel block was extracted or into said user data area of a different frame than said original frame.