GIMP User Manual
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# Brightness-Contrast

## Overview

The Brightness - Contrast tool adjusts the brightness and contrast levels for the active layer or selection.

## Brightness - Contrast Options

Brightness-Contrast Settings

Brightness

  The Brightness slider sets a positive or negative value for the brightness of the active selection or layer.

Contrast

  The Contrast slider sets a positive or negative value for the contrast level of the active layer or selection.

Preview

  The Preview checkbox toggles the use of a dynamic update of the active layer or selection. If this option is turned on, any changes made to the Brightness or Contrast sliders will be seen immediately.

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