Image color reduction method for color-defective observers using a color palette composed of 20 particular colors

Takashi Sakamoto

doi:10.1117/12.2078839

8 February 2015 Image color reduction method for color-defective observers using a color palette composed of 20 particular colors

Takashi Sakamoto

Author Affiliations +

Proceedings Volume 9395, Color Imaging XX: Displaying, Processing, Hardcopy, and Applications; 939514 (2015) https://doi.org/10.1117/12.2078839
Event: SPIE/IS&T Electronic Imaging, 2015, San Francisco, California, United States

Abstract

This study describes a color enhancement method that uses a color palette especially designed for protan and deutan defects, commonly known as red-green color blindness. The proposed color reduction method is based on a simple color mapping. Complicated computation and image processing are not required by using the proposed method, and the method can replace protan and deutan confusion (p/d-confusion) colors with protan and deutan safe (p/d-safe) colors. Color palettes for protan and deutan defects proposed by previous studies are composed of few p/d-safe colors. Thus, the colors contained in these palettes are insufficient for replacing colors in photographs. Recently, Ito et al. proposed a p/dsafe color palette composed of 20 particular colors. The author demonstrated that their p/d-safe color palette could be applied to image color reduction in photographs as a means to replace p/d-confusion colors. This study describes the results of the proposed color reduction in photographs that include typical p/d-confusion colors, which can be replaced. After the reduction process is completed, color-defective observers can distinguish these confusion colors.

Citation Download Citation

Takashi Sakamoto "Image color reduction method for color-defective observers using a color palette composed of 20 particular colors", Proc. SPIE 9395, Color Imaging XX: Displaying, Processing, Hardcopy, and Applications, 939514 (8 February 2015); https://doi.org/10.1117/12.2078839

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