contrast

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Related to contrasted: contracted, strikingly

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 classic literature ?
By this road that I have described, rough and hard, stumbling here, falling there, getting up again to fall again, they reach the rank they desire, and that once attained, we have seen many who have passed these Syrtes and Scyllas and Charybdises, as if borne flying on the wings of favouring fortune; we have seen them, I say, ruling and governing the world from a chair, their hunger turned into satiety, their cold into comfort, their nakedness into fine raiment, their sleep on a mat into repose in holland and damask, the justly earned reward of their virtue; but, contrasted and compared with what the warrior undergoes, all they have undergone falls far short of it, as I am now about to show.
Let Virginia be contrasted with North Carolina, Pennsylvania with Connecticut, or Maryland with New Jersey, and we shall be convinced that the respective abilities of those States, in relation to revenue, bear little or no analogy to their comparative stock in lands or to their comparative population.
If, in a few scattered instances, a brighter aspect is presented, they serve only as exceptions to admonish us of the general truth; and by their lustre to darken the gloom of the adverse prospect to which they are contrasted.
And yet in him, as in the chevalier, symptoms appeared which contrasted oddly with the general aspect of their persons.
Then she broke out again into one of her gay, happy, laughing moods; joking with me on my prowess as a Thark warrior as contrasted with my soft heart and natural kindliness.
Two were dark, and had high aquiline noses, like the Count, and great dark, piercing eyes, that seemed to be almost red when contrasted with the pale yellow moon.