Gradient Map
The Gradient Map effect adds colors to the dark and light parts of an image. The Gradient Map effect maps shadows to one color, and highlights to another based on the lightness value of each pixel. Give the darker parts of an image a completely different color from the lighter parts.
Customized settings can be saved as a preset for future use. Presets can be selected from the Presets drop-down, or saved by clicking the adjacent Save icon.
To apply a Gradient Map effect:
- Select Filter | Add | Special Effects from the main menu, or press Shift + Alt + S.
- In the Effects dialog, navigate to the Color group.
- Select Gradient Map.
- Set the options as described below.
- Do one of the following:
- Click OK to accept your changes and close the panel.
- Click Cancel to discard your changes and close the panel.
Gradient Map Options
|
Dark |
Specify the color to be added to the dark parts of an image. |
|
Light |
Specifies the color to be added to the light parts of an image. |
Right-click a slider to reset to the default value.
Use the Edit Brush to paint this effect onto specific areas of the image. 
Use the Gradient tool to transition this effect across specific areas of the image. 
Use the Radial Gradient tool to apply effects around, or directly to, a center point. 