IMAGE COLOR ESTIMATION METHOD, IMAGE COLOR ESTIMATION DEVICE, AND IMAGE COLOR ESTIMATION PROGRAM

WIPO Patent Application WO/2012/074014

A1

Provided is an image color estimation method that: calculates a signal value (SG) (Rs, Gs, Bs) based on a first display characteristic and a gradation value (T) (S121); and calculates an offset value (Co)(Ro, Go, Bo) corresponding to each component (Rs, Gs, Bs) of the signal value (SG), based on the first display characteristic (P1), a second display characteristic (P2), and the gradation value (T) (R, G, B) (S122); then adds the offset value (Co)(Ro, Go, Bo) to the signal value (SG) (Rs, Gs, Bs), and calculates the correction signal value (SC) (Rc, Gc, Bc)(S123); and converts the correction signal value (SC) (Rc, Gc, Bc) to a correction signal value (ST)(Xc, Yc, Zc) using a conversion matrix (M)(S124).

JP2002534740	INDUSTRIAL APPLICABILITY: A system operating in a multi-mode
JP2015019182	SIGNAL PROCESSOR, SIGNAL PROCESSING METHOD, PROGRAM, SIGNAL TRANSMISSION SYSTEM

SHIMODAIRA YOSHIFUMI (JP)
ONO KATSUYA (JP)

PCT/JP2011/077687

June 07, 2012

November 30, 2011

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UNIV SHIZUOKA NAT UNIV CORP (JP)
SHIMODAIRA YOSHIFUMI (JP)
ONO KATSUYA (JP)

H04N9/64; G06T1/00; G06T5/00; G09G5/02; H04N1/407; H04N1/46; H04N1/60

JP2008515340A	2008-05-08
JPH08294009A	1996-11-05

NOBUHIKO TAMURA ET AL.: "Calibration of LCD Colorimetry Considering Channel Interaction", THE JOURNAL OF THE INSTITUTE OF IMAGE INFORMATION AND TELEVISION ENGINEERS, vol. 56, no. 8, 2002, pages 1315 - 1320
TOSHIYUKI WAKEBE ET AL.: "Color Reproduction Method Reducing Reproduction Error Induced by Color Tracking, Device Drift and Imperfect Additivity", IEICE TECHNICAL REPORT, vol. 105, no. 617, 17 February 2006 (2006-02-17), pages 37 - 40

HASEGAWA Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)

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