Computer Vision Foundations · free preview

Color Displays and CIE Coordinates

A reproduction system is three matrices in a row, perfect matching needs the sensors to span the cone subspace, and CIE chromaticity normalizes out intensity.

1. The reproduction pipeline as matrices

The reproduction pipeline as matrices

2. The two conditions for a perfect match

The two conditions for a perfect match

3. Gamuts and the price of non-negativity

Gamuts and the price of non-negativity

4. CIE coordinates

CIE coordinates

5. Sensors may differ from cones

A camera's three sensor classes are not shaped like human cones, yet the camera feeds a display that matches colors perfectly. Which condition makes this possible?

6. Reading the gamut triangle

A display's three primaries form a triangle on the chromaticity diagram. Why do some real colors fall outside the triangle and reproduce poorly?

7. Computing chromaticity

A light has tristimulus values $X = 2$ , $Y = 3$ , and $Z = 1$ . Compute the chromaticity coordinate $x$ and write the number rounded to two decimals.

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