Search results
Results from the WOW.Com Content Network
Lightness is a visual perception of the luminance of an object. It is often judged relative to a similarly lit object. In colorimetry and color appearance models, lightness is a prediction of how an illuminated color will appear to a standard observer. While luminance is a linear measurement of light, lightness is a linear prediction of the ...
Afrikaans; Alemannisch; አማርኛ; العربية; Aragonés; ܐܪܡܝܐ; Արեւմտահայերէն; Armãneashti; অসমীয়া; Asturianu; Avañe'ẽ
A tea light-type candle, imaged with a luminance camera; false colors indicate luminance levels per the bar on the right (cd/m 2). Luminance is a photometric measure of the luminous intensity per unit area of light travelling in a given direction. [1]
Fig. 1. HSL (a–d) and HSV (e–h). Above (a, e): cut-away 3D models of each. Below: two-dimensional plots showing two of a model's three parameters at once, holding the other constant: cylindrical shells (b, f) of constant saturation, in this case the outside surface of each cylinder; horizontal cross-sections (c, g) of constant HSL lightness or HSV value, in this case the slices halfway ...
Lightness may refer to: Lightness, a property of a color; Lightness (philosophy), a philosophical concept most closely associated with continental philosophy and existentialism, which is used in ontology; A relatively low weight, mass or density of an object or material
This is a different perception than lightness, which is how light something appears compared to a similarly lit white object. [2] The adjective bright derives from an Old English beorht with the same meaning via metathesis giving Middle English briht.
The difference between brightness and lightness is that the brightness is the intensity of the object independent of the light source. Lightness is the brightness of the object in respect to the light reflecting on it. This is important because the Helmholtz–Kohlrausch effect is a measure of the ratio between the two. [3]
This moves the mixed color toward a neutral color—a gray or near-black. Lights are made brighter or dimmer by adjusting their brightness, i.e., energy level; in painting, lightness is adjusted through mixture with white, black, or a color's complement. The Color Triangle depicting tint, shade, and tone was proposed in 1937 by Faber Birren. [4]