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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 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.
Kundera's best-known work is The Unbearable Lightness of Being. Before the Velvet Revolution of 1989, the country's ruling Communist Party of Czechoslovakia banned his books. He led a low-profile life and rarely spoke to the media. [4] He was thought to be a contender for the Nobel Prize in Literature and was also a nominee for other awards. [5 ...
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.
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]
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]
NCS lightness (v) is a color's perceptual characteristic to contain more of the achromatic elementary colors black or white than another color. NCS lightness values varies from 0 for the elementary color black (S) to 1 for the elementary color white (W).
While the chroma and lightness of an object are its colorfulness and brightness judged in proportion to the same thing ("the brightness of a similarly illuminated area that appears white or highly transmitting"), the saturation of the light coming from that object is in effect the chroma of the object judged in proportion to its lightness.