Information technology. Office equipment. Test method of colour gamut mapping algorithm for office colour softcopy and hardcopy

2012 ◽  
Keyword(s):  
Information Technology ◽  
Test Method ◽  
Mapping Algorithm ◽  
Gamut Mapping ◽  
Colour Gamut ◽  
Office Equipment

Image Enhancement for Colour Deficiency via Gamut Mapping

2021 ◽  
Vol 2021 (29) ◽  
pp. 71-76
Author(s):  
Xu Lihao ◽  
Xu Qiang ◽  
Ming Ronnier Luo
Keyword(s):  
Image Enhancement ◽  
Colour Vision ◽  
Wavelength Shift ◽  
Normal Observer ◽  
Mapping Algorithm ◽  
Gamut Mapping ◽  
Colour Image ◽  
Enhancement Method ◽  
Colour Gamut

This paper describes a colour image enhancement method for those having colour-vision deficiencies. The proposed method can be divided into 3 stages. Firstly, a conversion relation between the wavelength shift (measured in nanometers) of a colour deficient observer (CDO) and the severity of colour deficiency was established. Secondly, the perceived colour gamut was built by applying the conversion relation. Finally, the original images were re-coloured by adopting a gamut mapping algorithm to map colours from the gamut of colour normal observer (CNO) to that of a CDO. Psychophysical experiments were then conducted to show the effectiveness of the method.

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