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Chapter 8. Understanding Colors and Chan... > Using Curves and Color Adjustments

Using Curves and Color Adjustments

The Curves adjustment lets you adjust tonal ranges in the image without changing image exposure. Curves is an excellent adjustment for lightening the dark shadows of an image to bring out detail, or for creating special effects like solorization. The Color Balance adjustment lets you change the highlight, shadows, and midtones of an image separately. The Brightness/Contrast adjustment changes an image by an overall lightning or darkening of the image pixels. While good for special effects, its linear way of changing an image's brightness and contrast do not lend themselves to photo restoration. Curves and Levels are much better for this type of work.

Use the Curves Adjustment

Open an image.

Click the Image menu, point to Adjustments, and then click Curves.

Click the Channel list arrow, and then select the composite channel.

Click the Tonal Input bar to reverse the Curves tonal values.

Click on the diagonal line to add an edit point, and then drag up or down to increase or decrease the tonal values of the active image.

Click OK.


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