Luminance

Luminance is a measure of the brightness of a light source or an object. It is an important concept in photography, computer graphics, and image processing.

Definition

Luminance is defined as the amount of light emitted or reflected by a surface per unit area. It is typically measured in units of candela per square meter (cd/m²) or nit (cd/m²).

Calculation

The luminance of an object can be calculated using the following formula: