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| Understanding Color/Properties of color and color matching | Index | Home |
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Setting the color balance on your computer monitor (gamma correction) |
Gamma is a numeric indication of the relation between input and output. For example, the image shown on a computer monitor will brighten if there is a power surge. Neutral grays might become brighter or darker than they were on the original object. Levels of gray will also vary in similar fashion on printers and scanners. Neutral grays might even assume colors (since grays in RGB mode are made by mixing identical amounts of each primary color), turning into red-tinted or blue-tinted grays. These phenomena can be corrected by a computer program that controls the gamma value. |
If the total gamma value from input through output is "1", the gradations that are output will be identical to what is input. |
In television broadcasts, gamma correction has already been applied so that the correct gradations will be displayed on your screen. |
The changes that happen to a photo |
Software for adjusting gamma |
Compare:Understanding Color/Calibration and characterization |
Compare:Understanding Color/Color management systems and gamut mapping |
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