Topical Terminology > Gain & Level
Gain & Level
For Gain & Level we have a term and definition in Photography.
Gain & Level (Photography) 
Gain and level are image processing terms which roughly correspond to the brightness and contrast control on a television. The gain is the " contrast " and the level is the "brightness". By changing the level the entire range of pixel values are linearly shifted brighter or darker. Gain on the other hand linearly stretches, shrinks the intensity range, thus altering the contrast.
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