Gamut compression method, program, and gamut compression device

摘要

A gamut compressing device for compressing video data in a first gamut into video data in a second gamut, includes a compression unit compressing a value of color data in the first gamut, not contained in the second gamut, into a value of color data contained in the second gamut through a predetermined compression calculation, and a gradation generating unit generating gradation in a manner such that a plurality of values of color data having the same value as a result of the compression in the compressing step become different in value in the second gamut.