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Subjective evaluation of required area of color gamut for preferred color reproduction using a laser light source display

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Abstract:

This paper describes a result of subjective evaluation of color gamut required for preferred color reproduction by using a display with laser light sources. The results indicate three matters: (1) the maximum chroma of the required color gamut on a display is found in several hues; (2) the maximum chroma changes depending on image contents; (3) it is expected that the color gamut required for preferred color reproduction is correlated with the pseudo-optimal colors.

In this evaluation, test images were presented on a laser light source display in a dark room with varying chroma values. Evaluation was made with five-grade score. The scores were expected to decrease after exceeding a certain chroma. The chroma level was the limit of the color gamut required for preferred color reproduction.

We evaluated six kinds of images with different hue of red, green, and blue with two lightness levels. For each color, one image was of a natural object, such as a leaf, sky and a rose. The other was of an artificial object, specifically a ball shape. The objects of each image consisted of similar colors.

Document Type: Research Article

Publication date: 2009-01-01

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    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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