Hue nonconstancy of CIELAB color space affects the result of gamut mapping and the accuracy of color difference evaluation seriously.To solve this problem

a hue-constancy corrected method was proposed and a new color space tLAB was constructed

which was used to replace CIELAB during color management.Based on Munsell color space

the hue nonconstancy of CIELAB was analyzed firstly.Then the hue in CIELAB was corrected according to Munsell renotation Data

and the tLAB color space was created which was hue constant.Meanwhile

3D look up table(3D-LUT) was utilized to characterize the non-linear relationship between CIELAB and tLAB;an implementation scheme for color management with a low spatio-temporal cost was presented.Finally

the results of gamut mapping in tLAB color space and a new color difference evaluation were presented.Experiments show that the results of gamut mapping in the new tLAB space gain an advantage over the traditional ones.In addition

the color management using tLAB color space has real time performance and universality.