12. Characterization of illuminants - 2011

12. Characterization of illuminants - 2011 - ECE 638:...

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ECE 638: Principles of Digital Color Imaging Systems Lecture 12: Characterization of Illuminants
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Synopsis
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Review of HVS color model Equivalent Representation: CIE XYZ (standard space for Colorimetry) Trichromatic Stage Opponent Color Stage Wandell’s Model
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Review of Stimulus Model Seeking a more compact parameterization of Example 1: CIE XYZ Stimulus Model:
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Example Example: Most efficient possible absorber when heated, it becomes a black body radiator (BBR) Planck’s law describes for a BBR at any given temperature (see W&S, p13)
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Spectral power distribution for black body radiator text
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Relative spectral power distribution of black body radiator text
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How to relate BBR to real-world stimulus? For each temperature T, compute the CIE XYZ coordinates of a BBR emitting light when heated to temperature T. -- Chromaticity for a BBR at some temperature T. --Chromaticity for a
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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 University-West Lafayette.

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12. Characterization of illuminants - 2011 - ECE 638:...

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