EN: Gamma correction
In surveillance camera, adjusts for brightness characteristic of the monitor, range 0.6 to 1. Adjustment to gray level display to show subtle shadow detail in dark image.
Canon glossary us
Measure of the amount of contrast in an image according to the properties of a gradation curve. High contrast = High Gamma and Low = Low.
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Measurement of the contrast of an image, representing the slope of the straight-line portion of the characteristic curve.
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A measure of the brightness and contrast of a monitor or the midtone brightness of a digital image. Adjusting the Gamma slider within an image-editing program will adjust the midtones while maintaining detail in the highlight and shadow areas. Adjust the monitor gamma to make the image appear more natural to your eye. A setting of around 18 is right for a Mac monitor while a 2.5 setting is more appropriate for a PC. .
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The brightness curve of the color spectrum as displayed (or reproduced) on a computer monitor, a printer or scanner.
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Is a mathematical term which is used to describes a skew in the middle tones of an image. Gamma values do not affect the overall density range (in other words the brightest and darkest points of the color space) but will dramatically affect the overall appearance: A low gamma value will produce a saturated, somber image, whereas a higher value will result in a de-saturated, washed-out result. All imaging devices such as monitors, digital cameras and scanners make use of some sort of gamma value as the conversion between digital and analog. The value of gamma can be specified for a color space so that the correct tonality can be reproduced. .
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Brightness, intensity of image s mid-level tones.
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Brightness of image s mid-level tones, resulting from input video voltage, output brightness, relative, dependent on eye sensitivity, characteristics of display.
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The third letter of the Greek alphabet is used to represent the intensity of light or brightness in video. In film, it refers to the slope of the D/Log E or characteristic curve, helping to define film contrast.
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With reference to displaying an image accurately on a computer screen, Gamma correction controls the overall brightness of an image. Images which are not properly corrected can look either too dark or bleached out.
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