Abstract

Transmittance spectra of fungi were estimated from seven-band optical micrographs. An optical microscope adjusted with a single-chip CCD camera with seven band filters was used for image acquisition. The Wiener method was applied to estimate the transmittance spectra of five species that belong to one genus of fungi. The Wiener estimation operator was calculated from transmittance spectra of 16 color transparencies and the corresponding camera responses. The estimated transmittance spectra were used for segmentation of conidia and hyphae in fungal optical micrographs; then the competitive learning in an artificial neural network was applied to the segmentation.

© 1999 Optical Society of America

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References

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  1. D. L. Plucknett, N. J. H. Smith, J. T. Williams, N. M. Anishetty, Gene Banks and the World’s Food (Princeton U. Press, Princeton, N.J., 1987).
  2. N. Hayasaka, S. Toyooka, T. Jaaskelainen, “Iterative feedback method to make a spatial filter on a liquid crystal spatial light modulator for 2D spectroscopic pattern recognition,” Opt. Commun. 119, 643–651 (1995).
    [CrossRef]
  3. S. Kawata, K. Sasaki, S. Minami, “Component analysis of spatial and spectral patterns in multispectral images. I. Basis,” J. Opt. Soc. Am. A 4, 2101–2106 (1987).
    [CrossRef] [PubMed]
  4. K. Sasaki, S. Kawata, S. Minami, “Component analysis of spatial and spectral patterns in multispectral images. II. Entropy minimization,” J. Opt. Soc. Am. A 6, 73–79 (1989).
    [CrossRef] [PubMed]
  5. B. A. Wandell, “The synthesis and analysis of color images,” IEEE Trans. Pattern Anal. Machine Intell. PAMI-9, 2–13 (1987).
  6. D. H. Brainard, B. A. Wandell, “Calibrated processing of image color,” Color Res. Appl. 15, 266–271 (1990).
    [CrossRef]
  7. M. J. Vrhel, H. J. Trussell, “Color correction using principal components,” Color Res. Appl. 17, 328–338 (1992).
    [CrossRef]
  8. Y. Arai, S. Nakauchi, S. Usui, “Color correction method based on the spectral reflectance estimation using a neural network,” in The Fourth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1996), pp. 5–9.
  9. F. König, “Reconstruction of natural spectra from color sensor using nonlinear estimation methods,” in IS&T’s Fiftieth Annual Conference (Society for Imaging Science and Technology, Cambridge, Mass.1997), pp. 454–458.
  10. H. Maı̂tre, F. Schmitt, J.-P. Crettez, Y. Wu, J. Y. Hardeberg, “Spectrophotometric image analysis of fine art paintings,” in The Fourth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1996), pp. 50–53.
  11. H. Haneishi, T. Hasegawa, N. Tsumura, Y. Miyake, “Design of color filters for recording artworks,” in IS&T’s Fiftieth Annual Conference (Society for Imaging Science and Technology, Cambridge, Mass.1997), pp. 369–372.
  12. Y. Yokoyama, N. Tsumura, H. Haneishi, Y. Miyake, J. Hayashi, M. Saito, “A new color management system based on human perception and its application to recording and reproduction of art paintings,” in The Fifth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1997), pp. 169–172.
  13. F. H. Imai, N. Tsumura, H. Haneishi, Y. Miyake, “Principal component analysis of skin color and its application to colorimetric color reproduction on CRT display and hardcopy,” J. Image Sci. Technol. 40, 422–430 (1996).
  14. J. Farrell, “Spectral based color image editing (SBCIE),” in The Fourth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1996), pp. 104–108.
  15. M. Yamaguchi, R. Iwama, Y. Ohya, T. Obi, N. Ohyama, Y. Komiya, “Natural color reproduction in the television system for telemedicine,” in Medical Imaging 1997: Image Display, Y. Kim, ed., Proc. SPIE3031, 482–489 (1997).
    [CrossRef]
  16. J. P. S. Parkkinen, J. HalliKainen, T. Jaaskelainen, “Characteristic spectra of Munsell colors,” J. Opt. Soc. Am. A 6, 318–322 (1989).
    [CrossRef]
  17. T. Jaaskelainen, J. Parkkinen, S. Toyooka, “Vector-subspace model for color representation,” J. Opt. Soc. Am. A 7, 725–730 (1990).
  18. M. J. Vrhel, H. J. Trussell, “Filter considerations in color correction,” IEEE Trans. Image Process. 3, 147–161 (1994).
    [CrossRef] [PubMed]
  19. M. J. Vrhel, H. J. Trussell, “Optimal color filters in the presence of noise,” IEEE Trans. Image Process. 4, 814–823 (1995).
    [CrossRef] [PubMed]
  20. M. A. Rifai, “A revision of the genus Trichoderma,” Mycolog. Pap. 116, 1–56 (1969).
  21. J. Bissett, “A revision of the genus Trichoderma. I. Section longibrachiatum sect. nov.,” Can. J. Bot. 62, 924–931 (1984).
    [CrossRef]
  22. H. Demuth, M. Beale, Matlab Neural Network Toolbox User’s Guide (The Math Works, Natick, Mass.1994).

1996 (1)

F. H. Imai, N. Tsumura, H. Haneishi, Y. Miyake, “Principal component analysis of skin color and its application to colorimetric color reproduction on CRT display and hardcopy,” J. Image Sci. Technol. 40, 422–430 (1996).

1995 (2)

M. J. Vrhel, H. J. Trussell, “Optimal color filters in the presence of noise,” IEEE Trans. Image Process. 4, 814–823 (1995).
[CrossRef] [PubMed]

N. Hayasaka, S. Toyooka, T. Jaaskelainen, “Iterative feedback method to make a spatial filter on a liquid crystal spatial light modulator for 2D spectroscopic pattern recognition,” Opt. Commun. 119, 643–651 (1995).
[CrossRef]

1994 (1)

M. J. Vrhel, H. J. Trussell, “Filter considerations in color correction,” IEEE Trans. Image Process. 3, 147–161 (1994).
[CrossRef] [PubMed]

1992 (1)

M. J. Vrhel, H. J. Trussell, “Color correction using principal components,” Color Res. Appl. 17, 328–338 (1992).
[CrossRef]

1990 (2)

D. H. Brainard, B. A. Wandell, “Calibrated processing of image color,” Color Res. Appl. 15, 266–271 (1990).
[CrossRef]

T. Jaaskelainen, J. Parkkinen, S. Toyooka, “Vector-subspace model for color representation,” J. Opt. Soc. Am. A 7, 725–730 (1990).

1989 (2)

1987 (2)

S. Kawata, K. Sasaki, S. Minami, “Component analysis of spatial and spectral patterns in multispectral images. I. Basis,” J. Opt. Soc. Am. A 4, 2101–2106 (1987).
[CrossRef] [PubMed]

B. A. Wandell, “The synthesis and analysis of color images,” IEEE Trans. Pattern Anal. Machine Intell. PAMI-9, 2–13 (1987).

1984 (1)

J. Bissett, “A revision of the genus Trichoderma. I. Section longibrachiatum sect. nov.,” Can. J. Bot. 62, 924–931 (1984).
[CrossRef]

1969 (1)

M. A. Rifai, “A revision of the genus Trichoderma,” Mycolog. Pap. 116, 1–56 (1969).

Anishetty, N. M.

D. L. Plucknett, N. J. H. Smith, J. T. Williams, N. M. Anishetty, Gene Banks and the World’s Food (Princeton U. Press, Princeton, N.J., 1987).

Arai, Y.

Y. Arai, S. Nakauchi, S. Usui, “Color correction method based on the spectral reflectance estimation using a neural network,” in The Fourth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1996), pp. 5–9.

Beale, M.

H. Demuth, M. Beale, Matlab Neural Network Toolbox User’s Guide (The Math Works, Natick, Mass.1994).

Bissett, J.

J. Bissett, “A revision of the genus Trichoderma. I. Section longibrachiatum sect. nov.,” Can. J. Bot. 62, 924–931 (1984).
[CrossRef]

Brainard, D. H.

D. H. Brainard, B. A. Wandell, “Calibrated processing of image color,” Color Res. Appl. 15, 266–271 (1990).
[CrossRef]

Crettez, J.-P.

H. Maı̂tre, F. Schmitt, J.-P. Crettez, Y. Wu, J. Y. Hardeberg, “Spectrophotometric image analysis of fine art paintings,” in The Fourth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1996), pp. 50–53.

Demuth, H.

H. Demuth, M. Beale, Matlab Neural Network Toolbox User’s Guide (The Math Works, Natick, Mass.1994).

Farrell, J.

J. Farrell, “Spectral based color image editing (SBCIE),” in The Fourth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1996), pp. 104–108.

HalliKainen, J.

Haneishi, H.

F. H. Imai, N. Tsumura, H. Haneishi, Y. Miyake, “Principal component analysis of skin color and its application to colorimetric color reproduction on CRT display and hardcopy,” J. Image Sci. Technol. 40, 422–430 (1996).

Y. Yokoyama, N. Tsumura, H. Haneishi, Y. Miyake, J. Hayashi, M. Saito, “A new color management system based on human perception and its application to recording and reproduction of art paintings,” in The Fifth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1997), pp. 169–172.

H. Haneishi, T. Hasegawa, N. Tsumura, Y. Miyake, “Design of color filters for recording artworks,” in IS&T’s Fiftieth Annual Conference (Society for Imaging Science and Technology, Cambridge, Mass.1997), pp. 369–372.

Hardeberg, J. Y.

H. Maı̂tre, F. Schmitt, J.-P. Crettez, Y. Wu, J. Y. Hardeberg, “Spectrophotometric image analysis of fine art paintings,” in The Fourth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1996), pp. 50–53.

Hasegawa, T.

H. Haneishi, T. Hasegawa, N. Tsumura, Y. Miyake, “Design of color filters for recording artworks,” in IS&T’s Fiftieth Annual Conference (Society for Imaging Science and Technology, Cambridge, Mass.1997), pp. 369–372.

Hayasaka, N.

N. Hayasaka, S. Toyooka, T. Jaaskelainen, “Iterative feedback method to make a spatial filter on a liquid crystal spatial light modulator for 2D spectroscopic pattern recognition,” Opt. Commun. 119, 643–651 (1995).
[CrossRef]

Hayashi, J.

Y. Yokoyama, N. Tsumura, H. Haneishi, Y. Miyake, J. Hayashi, M. Saito, “A new color management system based on human perception and its application to recording and reproduction of art paintings,” in The Fifth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1997), pp. 169–172.

Imai, F. H.

F. H. Imai, N. Tsumura, H. Haneishi, Y. Miyake, “Principal component analysis of skin color and its application to colorimetric color reproduction on CRT display and hardcopy,” J. Image Sci. Technol. 40, 422–430 (1996).

Iwama, R.

M. Yamaguchi, R. Iwama, Y. Ohya, T. Obi, N. Ohyama, Y. Komiya, “Natural color reproduction in the television system for telemedicine,” in Medical Imaging 1997: Image Display, Y. Kim, ed., Proc. SPIE3031, 482–489 (1997).
[CrossRef]

Jaaskelainen, T.

N. Hayasaka, S. Toyooka, T. Jaaskelainen, “Iterative feedback method to make a spatial filter on a liquid crystal spatial light modulator for 2D spectroscopic pattern recognition,” Opt. Commun. 119, 643–651 (1995).
[CrossRef]

T. Jaaskelainen, J. Parkkinen, S. Toyooka, “Vector-subspace model for color representation,” J. Opt. Soc. Am. A 7, 725–730 (1990).

J. P. S. Parkkinen, J. HalliKainen, T. Jaaskelainen, “Characteristic spectra of Munsell colors,” J. Opt. Soc. Am. A 6, 318–322 (1989).
[CrossRef]

Kawata, S.

Komiya, Y.

M. Yamaguchi, R. Iwama, Y. Ohya, T. Obi, N. Ohyama, Y. Komiya, “Natural color reproduction in the television system for telemedicine,” in Medical Imaging 1997: Image Display, Y. Kim, ed., Proc. SPIE3031, 482–489 (1997).
[CrossRef]

König, F.

F. König, “Reconstruction of natural spectra from color sensor using nonlinear estimation methods,” in IS&T’s Fiftieth Annual Conference (Society for Imaging Science and Technology, Cambridge, Mass.1997), pp. 454–458.

Mai^tre, H.

H. Maı̂tre, F. Schmitt, J.-P. Crettez, Y. Wu, J. Y. Hardeberg, “Spectrophotometric image analysis of fine art paintings,” in The Fourth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1996), pp. 50–53.

Minami, S.

Miyake, Y.

F. H. Imai, N. Tsumura, H. Haneishi, Y. Miyake, “Principal component analysis of skin color and its application to colorimetric color reproduction on CRT display and hardcopy,” J. Image Sci. Technol. 40, 422–430 (1996).

Y. Yokoyama, N. Tsumura, H. Haneishi, Y. Miyake, J. Hayashi, M. Saito, “A new color management system based on human perception and its application to recording and reproduction of art paintings,” in The Fifth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1997), pp. 169–172.

H. Haneishi, T. Hasegawa, N. Tsumura, Y. Miyake, “Design of color filters for recording artworks,” in IS&T’s Fiftieth Annual Conference (Society for Imaging Science and Technology, Cambridge, Mass.1997), pp. 369–372.

Nakauchi, S.

Y. Arai, S. Nakauchi, S. Usui, “Color correction method based on the spectral reflectance estimation using a neural network,” in The Fourth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1996), pp. 5–9.

Obi, T.

M. Yamaguchi, R. Iwama, Y. Ohya, T. Obi, N. Ohyama, Y. Komiya, “Natural color reproduction in the television system for telemedicine,” in Medical Imaging 1997: Image Display, Y. Kim, ed., Proc. SPIE3031, 482–489 (1997).
[CrossRef]

Ohya, Y.

M. Yamaguchi, R. Iwama, Y. Ohya, T. Obi, N. Ohyama, Y. Komiya, “Natural color reproduction in the television system for telemedicine,” in Medical Imaging 1997: Image Display, Y. Kim, ed., Proc. SPIE3031, 482–489 (1997).
[CrossRef]

Ohyama, N.

M. Yamaguchi, R. Iwama, Y. Ohya, T. Obi, N. Ohyama, Y. Komiya, “Natural color reproduction in the television system for telemedicine,” in Medical Imaging 1997: Image Display, Y. Kim, ed., Proc. SPIE3031, 482–489 (1997).
[CrossRef]

Parkkinen, J.

Parkkinen, J. P. S.

Plucknett, D. L.

D. L. Plucknett, N. J. H. Smith, J. T. Williams, N. M. Anishetty, Gene Banks and the World’s Food (Princeton U. Press, Princeton, N.J., 1987).

Rifai, M. A.

M. A. Rifai, “A revision of the genus Trichoderma,” Mycolog. Pap. 116, 1–56 (1969).

Saito, M.

Y. Yokoyama, N. Tsumura, H. Haneishi, Y. Miyake, J. Hayashi, M. Saito, “A new color management system based on human perception and its application to recording and reproduction of art paintings,” in The Fifth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1997), pp. 169–172.

Sasaki, K.

Schmitt, F.

H. Maı̂tre, F. Schmitt, J.-P. Crettez, Y. Wu, J. Y. Hardeberg, “Spectrophotometric image analysis of fine art paintings,” in The Fourth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1996), pp. 50–53.

Smith, N. J. H.

D. L. Plucknett, N. J. H. Smith, J. T. Williams, N. M. Anishetty, Gene Banks and the World’s Food (Princeton U. Press, Princeton, N.J., 1987).

Toyooka, S.

N. Hayasaka, S. Toyooka, T. Jaaskelainen, “Iterative feedback method to make a spatial filter on a liquid crystal spatial light modulator for 2D spectroscopic pattern recognition,” Opt. Commun. 119, 643–651 (1995).
[CrossRef]

T. Jaaskelainen, J. Parkkinen, S. Toyooka, “Vector-subspace model for color representation,” J. Opt. Soc. Am. A 7, 725–730 (1990).

Trussell, H. J.

M. J. Vrhel, H. J. Trussell, “Optimal color filters in the presence of noise,” IEEE Trans. Image Process. 4, 814–823 (1995).
[CrossRef] [PubMed]

M. J. Vrhel, H. J. Trussell, “Filter considerations in color correction,” IEEE Trans. Image Process. 3, 147–161 (1994).
[CrossRef] [PubMed]

M. J. Vrhel, H. J. Trussell, “Color correction using principal components,” Color Res. Appl. 17, 328–338 (1992).
[CrossRef]

Tsumura, N.

F. H. Imai, N. Tsumura, H. Haneishi, Y. Miyake, “Principal component analysis of skin color and its application to colorimetric color reproduction on CRT display and hardcopy,” J. Image Sci. Technol. 40, 422–430 (1996).

Y. Yokoyama, N. Tsumura, H. Haneishi, Y. Miyake, J. Hayashi, M. Saito, “A new color management system based on human perception and its application to recording and reproduction of art paintings,” in The Fifth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1997), pp. 169–172.

H. Haneishi, T. Hasegawa, N. Tsumura, Y. Miyake, “Design of color filters for recording artworks,” in IS&T’s Fiftieth Annual Conference (Society for Imaging Science and Technology, Cambridge, Mass.1997), pp. 369–372.

Usui, S.

Y. Arai, S. Nakauchi, S. Usui, “Color correction method based on the spectral reflectance estimation using a neural network,” in The Fourth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1996), pp. 5–9.

Vrhel, M. J.

M. J. Vrhel, H. J. Trussell, “Optimal color filters in the presence of noise,” IEEE Trans. Image Process. 4, 814–823 (1995).
[CrossRef] [PubMed]

M. J. Vrhel, H. J. Trussell, “Filter considerations in color correction,” IEEE Trans. Image Process. 3, 147–161 (1994).
[CrossRef] [PubMed]

M. J. Vrhel, H. J. Trussell, “Color correction using principal components,” Color Res. Appl. 17, 328–338 (1992).
[CrossRef]

Wandell, B. A.

D. H. Brainard, B. A. Wandell, “Calibrated processing of image color,” Color Res. Appl. 15, 266–271 (1990).
[CrossRef]

B. A. Wandell, “The synthesis and analysis of color images,” IEEE Trans. Pattern Anal. Machine Intell. PAMI-9, 2–13 (1987).

Williams, J. T.

D. L. Plucknett, N. J. H. Smith, J. T. Williams, N. M. Anishetty, Gene Banks and the World’s Food (Princeton U. Press, Princeton, N.J., 1987).

Wu, Y.

H. Maı̂tre, F. Schmitt, J.-P. Crettez, Y. Wu, J. Y. Hardeberg, “Spectrophotometric image analysis of fine art paintings,” in The Fourth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1996), pp. 50–53.

Yamaguchi, M.

M. Yamaguchi, R. Iwama, Y. Ohya, T. Obi, N. Ohyama, Y. Komiya, “Natural color reproduction in the television system for telemedicine,” in Medical Imaging 1997: Image Display, Y. Kim, ed., Proc. SPIE3031, 482–489 (1997).
[CrossRef]

Yokoyama, Y.

Y. Yokoyama, N. Tsumura, H. Haneishi, Y. Miyake, J. Hayashi, M. Saito, “A new color management system based on human perception and its application to recording and reproduction of art paintings,” in The Fifth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1997), pp. 169–172.

Can. J. Bot. (1)

J. Bissett, “A revision of the genus Trichoderma. I. Section longibrachiatum sect. nov.,” Can. J. Bot. 62, 924–931 (1984).
[CrossRef]

Color Res. Appl. (2)

D. H. Brainard, B. A. Wandell, “Calibrated processing of image color,” Color Res. Appl. 15, 266–271 (1990).
[CrossRef]

M. J. Vrhel, H. J. Trussell, “Color correction using principal components,” Color Res. Appl. 17, 328–338 (1992).
[CrossRef]

IEEE Trans. Image Process. (2)

M. J. Vrhel, H. J. Trussell, “Filter considerations in color correction,” IEEE Trans. Image Process. 3, 147–161 (1994).
[CrossRef] [PubMed]

M. J. Vrhel, H. J. Trussell, “Optimal color filters in the presence of noise,” IEEE Trans. Image Process. 4, 814–823 (1995).
[CrossRef] [PubMed]

IEEE Trans. Pattern Anal. Machine Intell. (1)

B. A. Wandell, “The synthesis and analysis of color images,” IEEE Trans. Pattern Anal. Machine Intell. PAMI-9, 2–13 (1987).

J. Image Sci. Technol. (1)

F. H. Imai, N. Tsumura, H. Haneishi, Y. Miyake, “Principal component analysis of skin color and its application to colorimetric color reproduction on CRT display and hardcopy,” J. Image Sci. Technol. 40, 422–430 (1996).

J. Opt. Soc. Am. A (4)

Mycolog. Pap. (1)

M. A. Rifai, “A revision of the genus Trichoderma,” Mycolog. Pap. 116, 1–56 (1969).

Opt. Commun. (1)

N. Hayasaka, S. Toyooka, T. Jaaskelainen, “Iterative feedback method to make a spatial filter on a liquid crystal spatial light modulator for 2D spectroscopic pattern recognition,” Opt. Commun. 119, 643–651 (1995).
[CrossRef]

Other (9)

J. Farrell, “Spectral based color image editing (SBCIE),” in The Fourth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1996), pp. 104–108.

M. Yamaguchi, R. Iwama, Y. Ohya, T. Obi, N. Ohyama, Y. Komiya, “Natural color reproduction in the television system for telemedicine,” in Medical Imaging 1997: Image Display, Y. Kim, ed., Proc. SPIE3031, 482–489 (1997).
[CrossRef]

D. L. Plucknett, N. J. H. Smith, J. T. Williams, N. M. Anishetty, Gene Banks and the World’s Food (Princeton U. Press, Princeton, N.J., 1987).

Y. Arai, S. Nakauchi, S. Usui, “Color correction method based on the spectral reflectance estimation using a neural network,” in The Fourth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1996), pp. 5–9.

F. König, “Reconstruction of natural spectra from color sensor using nonlinear estimation methods,” in IS&T’s Fiftieth Annual Conference (Society for Imaging Science and Technology, Cambridge, Mass.1997), pp. 454–458.

H. Maı̂tre, F. Schmitt, J.-P. Crettez, Y. Wu, J. Y. Hardeberg, “Spectrophotometric image analysis of fine art paintings,” in The Fourth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1996), pp. 50–53.

H. Haneishi, T. Hasegawa, N. Tsumura, Y. Miyake, “Design of color filters for recording artworks,” in IS&T’s Fiftieth Annual Conference (Society for Imaging Science and Technology, Cambridge, Mass.1997), pp. 369–372.

Y. Yokoyama, N. Tsumura, H. Haneishi, Y. Miyake, J. Hayashi, M. Saito, “A new color management system based on human perception and its application to recording and reproduction of art paintings,” in The Fifth Color Imaging Conference: Color Science, Systems and Applications (Society for Imaging Science and Technology and Society for Information Display, Scottsdale, Ariz.1997), pp. 169–172.

H. Demuth, M. Beale, Matlab Neural Network Toolbox User’s Guide (The Math Works, Natick, Mass.1994).

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Figures (9)

Fig. 1
Fig. 1

Multiband imaging system for microscopy.

Fig. 2
Fig. 2

Transmittance spectra of seven filters.

Fig. 3
Fig. 3

Transmittance spectra of 16 color transparencies.

Fig. 4
Fig. 4

Schematic diagram for the estimation of the transmittance spectra image.

Fig. 5
Fig. 5

Examples of transmittance spectra extracted from conidia, hyphae, and medium: (a) T. longibrachiatum on potato dextrose agar, (b) T. hamatum on corn-meal dextrose agar.

Fig. 6
Fig. 6

Slices of transmittance spectra image at 450 and 600 nm.

Fig. 7
Fig. 7

Architecture of the neural network used in the competitive learning method, where the highest internal value is c 2.

Fig. 8
Fig. 8

Example of a learning step with two-dimensional weight vector w, three neurons, and input vector p, where w1 is closest to input vector.

Fig. 9
Fig. 9

(a) Segmentation image of T. longibrachiatum based on transmittance spectra: black, conidia; gray, hyphae; white, medium. (b) Segmentation image of T. longibrachiatum based on RGB values: black, conidia; gray, hyphae and medium; white, medium.

Tables (1)

Tables Icon

Table 1 Normalized rms Error between Original and Estimated Spectral Transmittances of 16 Transparencies

Equations (10)

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

vix, y=410700 tiλEλSλox, y; λdλ, i=1,, m,
v=Fo,
F=TES,
T=t1, t2,, tmt.
oest=Gv.
ε=o-oestto-oest.
G=RovRvv-1,
Rov=ovt,  Rvv=vvt.
ci=-p-wi+bi,
w=w+lr×p-wi,

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