Relationships among chromatic tone, perceived lightness, and degree of vividness

Nayatani, Yoshinobu; Komatsubara, Hitoshi

doi:10.1002/col.20108

Cited by 18 publications

(38 citation statements)

References 12 publications

(42 reference statements)

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“…Later, in a series of studies, 7,8,15 the author proposed a theoretical opponent-colors system based on color appearance and color vision studies (named NT color order system abbreviated from Nayatani theoretical color order system). Like NCS, NT space also belongs to Type II color order system, because NT system also uses the attributes whiteness and blackness.…”

Section: Additional Color Order System Of Type II (Nt System)mentioning

confidence: 99%

Why two kinds of color order systems are necessary?

Nayatani¹

2005

Color Research & Application

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Section: Additional Color Order System Of Type II (Nt System)mentioning

confidence: 99%

Why two kinds of color order systems are necessary?

Nayatani¹

2005

Color Research & Application

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“…Development of a theoretical Hue-Tone system (NT color order system). [8][9][10] It consists of the attributes Hue H, whiteness w or blackness bk, grayness gr, and Munsell Chroma / C. NT space is now belongs to a part of In-CAM. …”

Section: Significance Of In-cam In Color Sciencementioning

confidence: 99%

“…A chromatic color with w ¼ bk ¼ 0 and hCi ¼ 10 approximately has no grayness (gr ¼ 0) irrespective of its hue. [8][9][10] Thus, the grayness gr is defined as follows: …”

Section: -10mentioning

confidence: 99%

“…The In-CAM(CIELUV) is closely related with the analytical formula of the Nayatani-Theoretical (NT) color order system already proposed by the senior author. [8][9][10] In NT space, Munsell color attributes H V/C are used for relating the color attributes of the NT and Munsell systems directly.…”

Section: Brief Introduction Of In-cam(cieluv)mentioning

confidence: 99%

“…(2) is approximated by 1 for simplicity (strictly, it should be 0.8660). 10 The attribute C Ã uv is kept as it is, and the opponent-colors hue H is determined from y on the basis of Munsell or NCS system. Table I can be used for the purpose.…”

Section: Comment On the Introduction Of H-k Effectmentioning

confidence: 99%

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An integrated color‐appearance model using CIELUV and its applications

Nayatani

Sakai

2008

Color Research & Application

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A new type of color-appearance model is presented together with its formulations. It is named In-CAM(CIELUV), which means the integrated colorappearance model using CIELUV space. Using the In-CAM(CIELUV), we can integrate its fields of applications in both colorimetric engineering and artistic color design. Various applications are introduced in colorimetric and color design fields. The In-CAM(CIELUV) connects directly colorimetric color space and perceptual HueTone color order systems. In other words, the In-CAM (CIELUV) gives a colorimetric basis for Hue-Tone system. The three color attributes in the In-CAM(CIELUV) space are mutually independent. This is a very convenient feature for selecting color combinations. Some two-color combinations selected systematically in the In-CAM(CIE-LUV) space are shown.

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