Using a Custom Tone Curve

If you want to experiment with tones, you can create a custom tone curve. An effective way to create a custom tone curve is first to adjust the preview image with an appropriate predefined tone curve and then edit the results.

Editing a tone curve involves adding handles to an existing tone curve and dragging them to change tonal levels in the image. When you drag a handle to a white area, the shape of the curve changes, and the tones of the preview image are adjusted.

All handles on the tone curve, including the end points, can be dragged anywhere within the tone graph. A handle that is dragged outside the tone graph is deleted; and the tone curve automatically conforms to the remaining points. Except for the end points, all handles can be deleted.

To create a custom tone curve:

1. In the Select Special Curve list box, select Edit Custom Curve.

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Chapter 6