This toolbar allows the current device's gain, sharpness and gamma properties to be adjusted.
In contrast to the "Brightness Control", this property manipulates a factor that is used to multiply every pixel value.
Depending upon the setting of Swap Gain & Contrast, the controls for gain may be in the Exposure Bar, and the controls for contrast are found here.
This property determines the sharpness of edges in the image.
All monitors show a non-linear display trait. This means that the differences between similar dark gray values can not be displayed. This effect can be neutralized by so-called gamma correction. With this property gamma correction can be switched on and off. There are cameras that provide more than one type of gamma correction (i.e. a special correction for taking images from the human skin - used in the medical field).