Polynomial expressions of pigment nomograms

  title={Polynomial expressions of pigment nomograms},
  author={S. M. Dawis},
  journal={Vision Research},
A().) is the logarithm of the absorption coefficient at wavelength i. (the units for wavelength is nanometers). For each fixed pair of &,,,, and b,,,, the above formula gives an absorption spectrum with a peak log absorption coefficient of b,, occurring at i. = &,,,,,. Note that in equation (1) the wavelength i. appears in the inverse form l/i.; so, the polynomial is in terms of frequency rather than wavelength. The effect of changing &,,,, in equation (1) is to produce a lateral shift of the… CONTINUE READING

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