MOVING IMAGE ENCODING METHOD, DEVICE AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To avoid the distortion of a vertical boundary of a block seen when adding a weak film grain image in film grain technology.

SOLUTION: This moving image encoding device comprises: a noise reducing part 11 for performing noise elimination processing of an input image of an encoding target including a noise image to generate a first main image; an estimating part 12 for estimating the noise image from the input image and the first main image to generate model information; a generating part 13 for generating a block vertical boundary signal being an image component to be damaged by smoothing filter processing to a boundary between respective noise image blocks of a film grain image with reference to the model information; an adding part 14 for adding the first main image and the block vertical boundary signal to generate a second main image; an encoding part 15 for encoding the second main image to generate encoded data; and a multiplexing part 16 for multiplexing the encoded data with the model information and outputting an encoded stream.

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