Display contrast
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Contrast in visual perception is the difference in appearance of two or more parts of a field seen simultaneously or successively (hence: brightness contrast, lightness contrast, color contrast, simultaneous contrast, successive contrast, etc.). Contrast in physics is a quantity intended to correlate with the perceived brightness contrast, usually defined by one of a number of formulae (see below) which involve e.g. the luminances of the stimuli considered, for example: near the luminance threshold (known as Weber contrast), or LH/LL for much higher luminances. A contrast can also be due to di...
Contrast in visual perception is the difference in appearance of two or more parts of a field seen simultaneously or successively (hence: brightness contrast, lightness contrast, color contrast, simultaneous contrast, successive contrast, etc.). Contrast in physics is a quantity intended to correlate with the perceived brightness contrast, usually defined by one of a number of formulae (see below) which involve e.g. the luminances of the stimuli considered, for example: near the luminance threshold (known as Weber contrast), or LH/LL for much higher luminances. A contrast can also be due to differences of chromaticity specified by colorimetric characteristics. Visual information is always contained in some kind of visual contrast, thus contrast is an essential performance feature of electronic visual displays. The contrast of electronic visual displays depends on the electrical driving (analog or digital input signal), on the ambient illumination and on the direction of observation (i.e. viewing direction).
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