Improving the brightness, contrast, or gamma of your raster layer

There are three ways to alter the brightness or contrast for a raster layer.

You can also alter the gamma, which affects how much light is given to the image or how bright it appears. This value can be set similarly to the brightness and contrast values—on the Image Analysis window or on the Layer Properties dialog box.

Steps:
  1. To view the Image Analysis window, click Windows on the main menu and click Image Analysis.
  2. Click one or more raster layers in the Image Analysis window.
  3. Next to either the Brightness Adjust Brightness, Contrast Adjust Contrast, or GammaReset Gamma buttons, you can use the slider to increase or decrease the value or you can type a value in the text boxes.
  4. Optionally, click the Brightness Adjust Brightness, Contrast Adjust Contrast, or GammaReset Gamma buttons to change them back to their defaults.

Related Topics


8/21/2013