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 " 33y _PPT10Y+D=' = @B +"6/  (      x0e?0e??Rectangle 2 `}  d > ""   x`0e?0e??Rectangle 3 ` d ~Are the color matching functions we observe obtainable from some 3x3 matrix transformation of the human photopigment response curves? (Because that s how color matching functions translate).  "  X@?(86=89 :>;>=B8BC; 5^   vwww.sliderbase.com(  " 33y _PPT10Y+D=' = @B +"^7/ umU(  V   x0e?0e??Rectangle 2P 0   d DColor matching functions (for a particular set of spectral primariesE EE "    x 0e?0e??Rectangle 3 ` d > ""  ZA. o??Object 4@ @ o  X?(86=89 :>;>=B8BC; 6^   vwww.sliderbase.com(  " 33y _PPT10Y+D=' = @B +"8/ (    ZA/ p??Object 3` pi   x@0e?0e??Rectangle 2`  d UComparison of color matching functions with best 3x3 transformation of cone responsesV V V "%  F?Text Box 40  =Foundations of Vision, by Brian Wandell, Sinauer Assoc., 1995*> =CC> "  X?(86=89 :>;>=B8BC; 6^   vwww.sliderbase.com(  " 33y _PPT10Y+D=' = @B +"9/ (  "   x 0e?0e??Rectangle 2 `}  d VInternal summary  "d   x0e?0e??Rectangle 3 ` d ?What are colors? Arise from power spectrum of light. How represent colors: Pick primaries Measure color matching functions (CMF s) Matrix mult power spectrum by CMF s to find color as the 3 primary color values. How share color descriptions between people? Translate colors between systems of primaries Standardize on a few sets of primaries.  P$ P P P- PV P P$-

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