The Improvement Of The Uniform Colour Space On Basis Of CIECAM02

With the development of color space and color-difference formula, color space is turning towards uniform. It means that space color-difference and visual color-difference will be more and more closely, the standardization of small color-differences is more and more meticulous. This paper uses the Rit-DuPont small color-difference data, constructs color discrimination ellipses, analyses the uniform property of the CIECAM 02 color space, uses linear regression regulate CIECAM02 color space brightness and chroma coordinate measurement,establishes a new uniform color space .The main work is comprised of: introduces the CIECAM02 color appearance model and the calculate method; on the basis of the CIECAM02 color space, a new optimized uniform color appearance space J D aDbD is established with the Rit.DuPont small color-difference data; with the color discrimination ellipses method, the uniform property of the two spaces is tested, the uniform property of the two spaces is compared;a new color-difference formula is inferenced, and tests the measurment consistent.The new optimized uniform color appearance space get the good result. The uniform property of the new optimized uniform color appearance space is better than the CIECAM02 original color space. Owing to using Rit.DuPont small color difference data, it's provided with new out apply research worth on exact colorful reproducing, supllys with theoretical reference for interrelated afterwards research for uniform color appearance space. Moreover, the new color-difference formula has been improved on visual consistent measurement.