The Shadow & Highlight effect allows to reveal details in bright and dark areas of an image and reduce contrast.
(hover the mouse over the picture to see the original image)
The effect panel contains two parameters sections.
The Shadows section lightens the dark areas of the image.
Amount (0-100). The parameter determines the intensity of lightening of dark areas.
Amount = 25
Amount = 75
Range (0-100). The parameter determines the range of tones that are modified. Smaller values restrict the adjustments to the darker areas. Larger values increase the range of tones to be adjusted.
Range = 10
Range = 100
Radius (0-100). The parameter sets the width of the area around the pixel used to determine whether it is in the shadow or highlight.
Radius = 10
Radius = 50
The Highlights sections allows to darken light areas.
Amount (0-100). The parameter controls the amount of darkening of light areas.
Amount = 25
Amount = 75
Range (0-100). The parameter determines the range of tones that are modified. Smaller values restrict the adjustments to the highlights. Larger values increase the range of tones that are adjusted.
Range = 10
Range = 100
Radius (0-100). The parameter sets the width of the area around the pixel used to determine whether it is in the shadow or highlight.
Radius = 10
Radius = 50
If the Fixed Preview Area check-box is enabled, all changes will be displayed in a small preview area. If the check-box is disabled, the changes will be applied to the area visible in the Image Window.
Click Default to restore the original settings.
Click OK to apply the changes to the image and close the effect dialog box.
Click Cancel to close the dialog box without applying changes.