13-Chip Color Camera Single Chip Color CameraColor Image ComponentsAdditive Colors2Subtractive Color IllustrationHuman Visual System Color PerceptionHVS MTF vs. WavelengthTristimulus Values• Tristimulus values are three sets of values which describe a color (like Red, Green and Blue).• There are no unique set of primary colors provided that the selected colors are widely separated.• CIE primary colors are 700 nm (red), 546.1 nm (green) and 435.8 nm (blue).3CIE Chromaticity DiagramCIE ColorsTelevision Primary colorsColor Wheel4RGB Color Model HSI Coordinate SystemHue Interpretation• Red 0 or 360 degrees Primary• Yellow 60 degrees Secondary (Green + Red)• Green 120 degrees Primary• Cyan 180 degrees Secondary (Blue + Green)• Blue 240 degrees Primary• Magenta 300 degrees Secondary (Red + Blue)Saturation• Saturation is a measure of the purity of the color specified by the hue component. For example,• navy blue is more saturated than sky blue.• As a color component, saturation assumes a measure from 0.0 to 1.0. A saturation of 0.0 indicates the absence of color, or a shade of gray.• A saturation of 1.0 indicates a pure color as specified by the hue component.5L*a*b* Coordinate System YIQ Color Coordinate SystemLab Interpretation• L is brightness• a is associated with redness and greeness• b is associated with yellowness and