Patent ID: 6816284
Filing Date: 2004-11-09
Classification: H04N

Abstract:
A multispectral color reproduction system comprising:a recording unit for measuring a spectral color stimuli with a spectral color scanner; a coding and decoding system with a coder and decoder for an efficient digitized representation of the spectral color stimuli by a data format with a K linear multispectral values, wherein the K linear multispectral values are weighting factors of a linear decomposition of defined basis functions, and the basis functions may also be defined orthogonal, and a first three linear multispectral values might be a linear combinations of color values determined from the spectral color stimuli with help of spectral color matching functions to preserve compatibility with conventional three primary color reproduction techniques, wherein the K linear multispectral values are additionally distorted nonlinear in the coder and then transmitted using shorter binary word length and are inversely distorted in the decoder, and the distortion characteristic in the coder and decoder can be made dependent on the values of the linear multispectral values.