Design Tip 7-5.1

UNDERSTANDING ADJUSTMENT PANEL CONTROLS

The Adjustments panel, is grouped with the Masks panel, and allows you to apply 15 preset adjustment levels. Presets are grouped by theme. The top four presets (Brightness/Contrast, Levels, Curves, and Exposure) are tonal controls: the next six presets (Vibrance, Hue/Saturation, Color Balance, Black & White, Photo Filter, and Channel Mixer) are color controls, and the remaining five presets are creative/advanced controls (Invert, Posterize, Threshold, Gradient Map, and Selective Color).

Adobe Photoshop CS4 Revealed Ch. 7, L5, p. 7-24