Ishikawajima-harima Heavy Industries Co., Ltd.

Makoto Ikarashi

Hajime Banno

There are provided an image compression device, method, and program, a compression code data encoding device, method, and program, and a decoding device, method, and program. The image compression device includes: means for dividing the entire image into blocks, calculating an inclined plane or an outer edge inclined plane for calculating a parameter specifying the inclined plane or the outer edge inclined plane for approximating the respective blocks from the block pixel values, calculating an error amount or a difference value to calculate a difference between the inclined plane or the outer edge inclined plane and the respective pixel values, and calculating an encoding correction amount of each block; and encoding portion for reversibly encoding the parameter specifying the inclined plane or the outer edge inclined plane. The encoding device includes synthesis portion for judging a change amount of generation probability contained in the data to be compressed and obtained in time series, generating difference probability data including a generation probability of data having a large generation probability, and synthesizing the generated difference probability data with the compression/encoding data.

Image compression device, image compression method, image compression program, compression encoding method, compression encoding device, compression encoding program, decoding method, decoding device, and decoding program

Growing community of inventors

Yokohama, Japan

Makoto Ikarashi