08. Discrete wavelength models primaries - 2011

# 08. Discrete wavelength models primaries - 2011 - ECE 638...

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ECE 638: Principles of Digital Color Imaging Systems Lecture 8: Discrete Wavelength Models Primaries

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Synopsis Review of discrete wavelength model Definition of primary set for discrete wavelength model Color matching condition and graphical interpretation Fundamental component of primary set Computation of primary match amount Transformation between two different primary sets Color matching matrix
Discrete-wavelength trichomatic model Stimulus Sensor response Response of the i -th channel Define Span(S) defines HVS subspace Stack sensor outputs n – 31 × 1 s i – 31 × 1, i=1,2,3 q i = s i T n S = s 1 s 2 s 3 [ ] q = q 1 q 2 q 3 = S T n

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Primaries Discrete-wavelength representation of a single primary Primary set Stimuli generated using primary set consist of linear combinations of columns of p i = p i ,1 , , p i ,31 T P P d = P a , a = a 1 , a 2 , a 3 T P = p 1 , p 2 , p 3 (31 × 3)
Stimulus is matched by primary combination if Graphical illustration of color matching condition for two wavelength samples, a monochromatic sensor, and a single primary

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## This note was uploaded on 02/19/2012 for the course ECE 638 taught by Professor Staff during the Fall '08 term at Purdue.

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08. Discrete wavelength models primaries - 2011 - ECE 638...

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