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Lightness is a visual perception of the luminance of an object. It is often judged relative to a similarly lit 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.
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]
Light spectrum, from Theory of Colours – Goethe observed that colour arises at the edges, and the spectrum occurs where these coloured edges overlap.. Theory of Colours (German: Zur Farbenlehre) is a book by Johann Wolfgang von Goethe about the poet's views on the nature of colours and how they are perceived by humans.
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 ...
The Unbearable Lightness of Being takes place mainly in Prague in the late 1960s and early 1970s. It explores the artistic and intellectual life of Czech society from the Prague Spring of 1968 to the invasion of Czechoslovakia by the Soviet Union and three other Warsaw Pact countries and its aftermath through the lives of two separate pairs of people and those around them.
Afrikaans; Alemannisch; አማርኛ; العربية; Aragonés; ܐܪܡܝܐ; Արեւմտահայերէն; Armãneashti; অসমীয়া; Asturianu; Avañe'ẽ
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
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