Information encoding method, information playback method, and information storage medium using two versions of film grain reproduction information

摘要

According to one embodiment, an information encoding method generates main image information from input image information by applying noise reduction processing to the input image information, estimates noise image information included in the input image information from the input image information and the main image information to generate first model information corresponding to the noise image information, corrects a parameter which does not satisfy a predetermined condition of a plurality of parameters included in the first model information to generate second model information including the plurality of parameters which reflect the correction, encodes the main image information to generate encoded image information, and generates encoded information including the encoded image information, the first model information, and the second model information.