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 Brightness/ContrastBrightness/Contrast command lets you make simple adjustments to the tonal range of a photo. Unlike Curves and Levels, this command makes the same adjustment to every pixel in the photo. Brightness/Contrast command does not work with individual channels and is not recommended for high-end output, because it can result in a loss of detail in the photo. Adjustable settings: Brigthness value - setting of photo brightness level. Positive values make the photo brighter. Such values are relative figures.
Contrast value - when the value is increased (higher contrast) dark areas of a photo become darker and light ones are getting brighter. When the value is decreased the effect is just the opposite.
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