contrast

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contrast

1. (in painting) the effect of the juxtaposition of different colours, tones, etc.
2. 
a. (of a photographic emulsion) the degree of density measured against exposure used
b. the extent to which adjacent areas of an optical image, esp on a television screen or in a photographic negative or print, differ in brightness
3. Psychol the phenomenon that when two different but related stimuli are presented close together in space and/or time they are perceived as being more different than they really are

Contrast

A juxtaposition of dissimilar elements to show the differences of form or color, or to set in opposition in order to emphasize the differences.

Contrast

 

in psychology, the subjective exaggeration of the differences between perceived objects or between certain sectors of the visual field during their spatial (simultaneous contrast) or temporal (successive contrast) contiguity. Thus, when the color black is placed next to white it seems even blacker. Contrast may also be manifested in color change. For example, a gray square on a red background seems greenish blue; on a blue background it looks orange. The sharpest contrast of two colors is expressed at the boundary of the two areas (boundary contrast). The phenomenon of assimilation is the opposite of contrast. Contrast is widely used in various forms of art and literature.

REFERENCES

Vudvorts, R. Eksperimental’naia psikhologiia. Moscow, 1950.
Teplov, B. M. “Vzaimodeistvie odnovremennykh svetovykh oschchushchenii.” In Zritel’nye oshchushcheniia i vospriiatiia. Moscow-Leningrad, 1935.

contrast

[′kän‚trast]
(communications)
The degree of difference in tone between the lightest and darkest areas in a television or facsimile picture.
(computer science)
In optical character recognition, the difference in color, reflectance, or shading between two areas of a surface, for example,a character and its background.

contrast

The white level of a display screen. The contrast adjusts how bright the white is. See brightness and contrast ratio.
References in periodicals archive ?
The nearby word "light" is sung on an E-flat--but contrastively a related word, "shade" is on a higher E-natural, prefiguring some of the power of the oppositional and negative that Pound proposes and that Carter frames.
They are productive and have unexpectedly low frequency and in doing so, contrastively highlight the statistical idiomaticity of the target expression (bibhha barshiki, 'marriage anniversary').
The structures in both cases are pragmatically marked with the VO and the V being contrastively focussed, as indicated by the free translation in English.
We can contrastively evaluate the quality and performance of the depth map through benchmark images provided with accurate ground truth disparity maps.
Contrastively, addresses configured at manufacture time would be typically 48 bits, and address determined at deployment time would have a length of [log.sub.2]N, where N is the total number of nodes in the whole network.
Contrastively, under TSSVMADRC speed controller in Tigure 4, rotor speed drops to 695 r/min when load suddenly changes, and only after 0.06 s it reaches steady state again.
Contrastively, several transformations in [10] are introduced to represent the system into a nonlinear cascade form.
According to Tsukada (2002) vowel duration is used contrastively in some languages but not in others.
Contrastively, settling in neighborhood clusters that are defined by language and culture may also exacerbate differences and thus tensions between mainstream and Spanish-speaking communities, and allow law enforcement to strategically target individuals for detention (Bauer 2009, Beirich, n.d.).
Peter by setting all alone public demonstrations of miracles that surpassed the forces of nature, thus contrastively juxtaposing them with the beliefs in wonders made by God.
Experiment 1: Take the support vector machine (SVM) [30] as the classifier to analyze the performance of CMMF and CMMCF contrastively when targets fly towards the radar station.
Contrastively, they should regard themselves as entrepreneurs and practice entrepreneurial behavior.