Luminence refers to the amount of light produced, transmitted, or reflected in a scene. It quantifies the brightness of objects as perceived by the human eye and is a fundamental concept in photography, cinematography, and lighting design.
Understanding luminence is important for photographers and lighting professionals to control exposure, contrast, and the visual impact of an image. Accurate assessment of luminence ensures that both bright and shadowed areas are captured correctly, allowing for balanced, high-quality images in both still photography and motion pictures.