Advanced Scanning
The height of the curve indicates the intensity of the tone, from darker tones on the left to lighter tones on the right.
You can adjust any shadow, midtone, or highlight in an image by changing the shape of its tone curve.
For example, suppose you want to scan a photograph of a group of people where most of the faces look fine, but one person was too close to the flash and so looks washed out.
Since most of the subjects in the photo look fine (indicating that the midtone ranges are good), you can adjust only the
As another example, suppose you have a photograph where some objects are too dark and others are too light (which can happen easily when shooting outside on a bright, sunny day).
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