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.
Journal Title : Color and Imaging Conference
Publisher Name : Society for Imaging Science and Technology
Publisher Location : 7003 Kilworth Lane, Springfield, VA 22151 USA
Xu Lihao, Xu Qiang, Ming Ronnier Luo, "Image Enhancement for Colour Deficiency via Gamut Mapping" in Proc. IS&T 29th Color and Imaging Conf.,2021,pp 71 - 76, https://doi.org/10.2352/issn.2169-2629.2021.29.71
Image Enhancement for Colour Deficiency via Gamut Mapping
LihaoXu
QiangXu
Ronnier LuoMing
01112021
2021
29
71
76
2021
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.