21 December 2000 Standard portrait image and image quality assessment: II. Triplet comparison
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We have already proposed a standard portrait for the assessment of preferable skin tone. The present report describes a psycho physical experimental method, i.e., simultaneous triplet comparison that has been developed for the assessment of skin tone by using the portrait and that is characterized not only by a scalability, stability and reproducibility of the resulting scale values, but also by a reduce stress on observers. We have confirmed that the present simultaneous triplet comparison has a degree of scalability and stability almost equivalent to that of paired comparison that is most widely used for similar purposes, and that the stress on observers is about half as much as that of paired comparison.
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Keiichi Miyazaki, Kunihiko Kanafusa, Hiroshi Umemoto, Kazuhiko Takemura, Hitoshi Urabe, Keisuke Hirai, Kazuo Ishikawa, Toyohiko Hatada, "Standard portrait image and image quality assessment: II. Triplet comparison", Proc. SPIE 4300, Color Imaging: Device-Independent Color, Color Hardcopy, and Graphic Arts VI, (21 December 2000); doi: 10.1117/12.410805; https://doi.org/10.1117/12.410805

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