Polynomial Regression Spectra Reconstruction of Arctic Charr’s RGB

  • J. Birgitta Martinkauppi
  • Yevgeniya Shatilova
  • Jukka Kekäläinen
  • Jussi Parkkinen
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5646)


Arctic Charr (Salvelinus alpinus L.) exhibit red ornamentation at abdomen area during the mating season. The redness is caused by carotenoid components and it assumed to be related to the vitality, nutritional status, foraging ability and generally health of the fish. To assess the carotenoid amount, the spectral data is preferred but it is not always possible to measure it. Therefore, an RGB-to-spectra transform is needed. We test here polynomial regression model with different training sets to find good model especially for Arctic charr.


Arctic Charr (Salvelinus alpinus L.carotenoid spectral data sRGB to spectra transform 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • J. Birgitta Martinkauppi
    • 1
  • Yevgeniya Shatilova
    • 2
  • Jukka Kekäläinen
    • 1
  • Jussi Parkkinen
    • 1
  1. 1.University of Joensuu, PL 111JoensuuFinland
  2. 2.Previously at University of JoensuuFinland

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