Paper Info
Title
Three-Dimensional Gamut Mapping Using Various Color Difference Formulae And Color Spaces
Abstract
Gamut mapping is a technique to transform out-of-gamut colors to the inside of the output device's gamut. It is essential to develop effective mapping algorithms to realize WYSIWYG (What You See Is What You Get) color reproduction(1). In this paper, three-dimensional gamut mapping using various color difference formulae and color spaces are considered. Visual experiments were performed to evaluate which combination of color difference formula and color space for gamut mapping was most preferred for five images. The color difference formulae used in the experiments were Delta E*(ab), Delta E*(uv), Delta E-94, Delta E-CMC, Delta E-BFD, and Delta E-wt. The color spaces used in the experiments were CIELAB, CIELUV, CIECAM97s, IPT, and NC-IIIC. A clipping method was used that maps all out-of-gamut colors to the surface of the gamut, and no change was made to colors inside the gamut. It was found that gamut mapping using Delta E-94, Delta E-CMC, and Delta E-wt, were effective in CIELAB color space. For mapping images containing a large portion of blue colors, Delta E-BFD, and Delta E*(uv), were found to be more effective. Delta E*(ab) was least preferred for all images. With respect to color spaces, gamut mapping performed in the CIELUV color space was superior to any other color spaces for the blue region. We conclude: that Delta E-94-LUV and Delta E-BFD-LAB are the most useful combinations of color difference formula and color space for gamut mapping, if we are to apply a single combination universally.
Year
DOI
Venue
1999
10.1117/12.334547
COLOR IMAGING: DEVICE-INDEPENDENT COLOR, COLOR HARDCOPY, AND GRAPHIC ARTS IV
Keywords
Field
DocType
gamut mapping, color difference formula, color space, distance function
Computer vision,Gamut,Color space,RGB color space,Color depth,RGB color model,Artificial intelligence,Spectral color,Color difference,Primary color,Mathematics
Conference
Volume
ISSN
Citations 
3648
0277-786X
6
PageRank 
References 
Authors
1.19
0
2
Name
Order
Citations
PageRank
masahiko ito161.19
Naoya Katoh2519.55