Transcription of Chromaticity Coordinates X,Y,Z specify a color’s ...
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C. A. Bouman: Digital Image Processing - January 12, 20221 Chromaticity Coordinates Tristimulus valuesX, Y, Zspecify a color s: Lightness - light or dark Hue - red, orange, yellow, green, blue, purple Saturation - pink-red; pastel-fluorescent; baby blue-deep blue Thechromaticityspecifies the hue and saturation, but notthe +Y+Zy=YX+Y+Zz=ZX+Y+ZC. A. Bouman: Digital Image Processing - January 12, 20222 Properties of Chromaticity Coordinatesx=XX+Y+Zy=YX+Y+Zz=ZX+Y+Z x+y+z= 1- Third component can always be computedfrom first two. Typically,(x, y)are specified Let be any positive constant.
• Tristimulus values X,Y,Z specify a color’s: – Lightness - light or dark – Hue - red, orange, yellow, green, blue, purple – Saturation - pink-red; pastel-fluorescent; baby blue-deep blue • The chromaticity specifies the hue and saturation, but not the lightness. x = X
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