Automatic Contrast Adjustment - Nikon Scan User Manual

Automatic Contrast Adjustment

If you prefer, the Nikon Scan plug-in is capable of selecting
optimal neutral Black and White Points for you. The Automatic
Contrast Adjustment control in the plug-in will usually produce
excellent results. Simply click the Contrast Adjust button.
The software will analyze the portion of the preview image
contained within the cropped region of the preview and
automatically select an optimum Black Point and White Point.
The active gamma curves will be modified automatically.
Note that this may sometimes lead to undesirable color
balance. If for example, the original image is of a predominantly
'warm-toned' scene, such as a sunset, then the neutral highlight
produced by Autocontrast, or the White point eyedropper,
would be too 'cold' for the subject matter of the image.
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