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 ?
Contrastive Linguistics and the Language Teacher (Language Teaching Methodology Series).
More recently, Contrastive Rhetoric has turned its attention to the process and products of what is written for publication and professional purposes.
76): "There is an open question of the phonetic (and acoustic) reality of such an (extra-long) contrastive stress.
L'ajout du pronom tonique, accentue et detache, est necessaire et suffisant pour donner a l'enonce une valeur contrastive.
Sentences with the three types of focal structures (broad focus, contrastive focus and new information) were presented in a randomized order.
It is used to change the neutral status of a phrase or constituent to a status of contrastive focus.
The juxtaposition of contrastive named subjects in Songs 1 and 31 therefore creates an inductive space in which relationships between dancers, singers, ancestral beings and listeners are formed.
For my purposes in this paper, I will consider the contrastive elements in [P.
columns and parallel verbal structures to indicate simultaneous contrastive and unifying emphasis, similar to the modern use of tables;
She does a particularly good job presenting the issues associated with contrastive rhetoric, which has been riddled with controversy from its inception in 1996 with the publication of Robert Kaplan's article in Language and Learning, "Cultural Thought Patterns in Inter-Cultural Education" (also known as the "doodles" article).
For example, the brief discussion provided in the film of Kaplan's well-known diagrams of organizational patterns in various languages is not explored fully; without careful contextualizing, the interviews with students that immediately follow the introduction of Kaplan's models may serve to reinforce his contested theories of contrastive rhetoric.
Active Dynamic Range Expander (Active DRE) reproduces a crisp, contrastive picture quality.