Luminance refers to the amount of light or brightness emitted, reflected, or transmitted from a surface or object. It is a quantitative measure of the perceived intensity of light. Luminance is an essential concept in the field of optics and is measured in units called candelas per square meter (cd/m²).
Luminance is often used to describe the brightness or brightness contrast between different parts of an image, such as in photography or videography. In these fields, it serves as a measurement of the amount of light reaching the viewer's eye from each point in the image.
Luminance is influenced by various factors, including the intensity of the light source illuminating an object or scene, the reflectivity or transmittance of the surface, and the angle and distance between the observer and the object. It plays a crucial role in our perception of visual information and can greatly impact how we perceive images, colors, and contrasts.
In addition to its applications in imaging, luminance is also important in various other fields, including lighting design, display technology, and visual ergonomics. It helps determine optimal lighting levels for different tasks and environments and plays a significant role in the design and functionality of display devices such as televisions, computer screens, and projectors.
Overall, luminance is a measure of the brightness of light emitted, reflected, or transmitted from a surface or object, with implications for various fields involving visual perception and technological applications.
