Abstract

Due to the nonlinear transform from spectral reflectance to CIELAB values, the solution obtained by minimizing reflectance error in traditional spectral characterization methods will not be optimal when evaluated by colorimetric error. We propose a reflectance estimation method with consideration of perceptual color space. It combines two approaches, i.e., colorimetric-based spectral calculation and weighted spectral calculation. The experimental results show that the proposed method performs better than previous methods in terms of color difference with very slight degradation in spectral accuracy.

© 2006 Optical Society of America

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References

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2006 (1)

2005 (1)

2004 (1)

2003 (1)

2002 (1)

2001 (1)

G. W. Hong, M. R. Luo, and P. A. Rhodes, Color Res. Appl. 26, 76 (2001).
[Crossref]

1996 (1)

M. Wolski, C. A. Bouman, J. P. Allebach, and E. Walowit, IEEE Trans. Image Process. 5, 507 (1996).
[Crossref] [PubMed]

1995 (1)

R. McDonald and K. J. Smith, J. Soc. Dyers Colour. 111, 376 (1995).
[Crossref]

Allebach, J. P.

M. Wolski, C. A. Bouman, J. P. Allebach, and E. Walowit, IEEE Trans. Image Process. 5, 507 (1996).
[Crossref] [PubMed]

Bouman, C. A.

M. Wolski, C. A. Bouman, J. P. Allebach, and E. Walowit, IEEE Trans. Image Process. 5, 507 (1996).
[Crossref] [PubMed]

Cheung, V.

Connah, D.

Dicarlo, J. M.

Hardeberg, J.

Hardeberg, J. Y.

J. Y. Hardeberg, 'Acquisition and reproduction of color images: colorimetric and multispectral approaches,' Ph.D. dissertation (Ecole Nationale Superieure des Telecommunications, 1999).

Healey, G.

Hong, G. W.

G. W. Hong, M. R. Luo, and P. A. Rhodes, Color Res. Appl. 26, 76 (2001).
[Crossref]

Li, C.

Luo, M. R.

G. W. Hong, M. R. Luo, and P. A. Rhodes, Color Res. Appl. 26, 76 (2001).
[Crossref]

McDonald, R.

R. McDonald and K. J. Smith, J. Soc. Dyers Colour. 111, 376 (1995).
[Crossref]

Pratt, W. K.

W. K. Pratt, Digital Image Processing, 2nd ed. (Wiley, 1991).

Rhodes, P. A.

G. W. Hong, M. R. Luo, and P. A. Rhodes, Color Res. Appl. 26, 76 (2001).
[Crossref]

Shen, H. L.

Shi, M.

Smith, K. J.

R. McDonald and K. J. Smith, J. Soc. Dyers Colour. 111, 376 (1995).
[Crossref]

Walowit, E.

M. Wolski, C. A. Bouman, J. P. Allebach, and E. Walowit, IEEE Trans. Image Process. 5, 507 (1996).
[Crossref] [PubMed]

Wandell, B. A.

Westland, S.

Wolski, M.

M. Wolski, C. A. Bouman, J. P. Allebach, and E. Walowit, IEEE Trans. Image Process. 5, 507 (1996).
[Crossref] [PubMed]

Xin, J. H.

Color Res. Appl. (1)

G. W. Hong, M. R. Luo, and P. A. Rhodes, Color Res. Appl. 26, 76 (2001).
[Crossref]

IEEE Trans. Image Process. (1)

M. Wolski, C. A. Bouman, J. P. Allebach, and E. Walowit, IEEE Trans. Image Process. 5, 507 (1996).
[Crossref] [PubMed]

J. Opt. Soc. Am. A (5)

J. Soc. Dyers Colour. (1)

R. McDonald and K. J. Smith, J. Soc. Dyers Colour. 111, 376 (1995).
[Crossref]

Other (2)

J. Y. Hardeberg, 'Acquisition and reproduction of color images: colorimetric and multispectral approaches,' Ph.D. dissertation (Ecole Nationale Superieure des Telecommunications, 1999).

W. K. Pratt, Digital Image Processing, 2nd ed. (Wiley, 1991).

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Figures (1)

Fig. 1
Fig. 1

Distribution of average Δ E 94 * errors with respect to the number K of training samples when using target CDC under D65.

Tables (2)

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Table 1 Polynomial Elements of Vector h with 14 and 20 Terms

Tables Icon

Table 2 Reflectance Estimation Accuracy of Different Methods when Using Target CDC

Equations (9)

Equations on this page are rendered with MathJax. Learn more.

ρ = F OECF ( v ) = F OECF ( M s r + f ) = F OECF ( u + f ) ,
v = [ M s f ] [ r 1 ] ,
[ M s f ] = V [ R 1 ] + ,
h = F 1 q ( u 1 , u 2 , u 3 ) ,
r ̂ c = K r M c T ( M c K r M c T + K n ) 1 a ̂ ,
r α , k = α k r k , u α , k = α k u k ,
α k = ( 2 π ) 3 2 K t 1 2 exp [ 1 2 ( t k t ̂ ) T K t 1 ( t k t ̂ ) ] ,
r ̂ s = W LS u .
r ̂ = 1 2 ( r ̂ c + r ̂ s ) .

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