Adobe Photoshop CS4 - Manual (Page 169)

162 USING PHOTOSHOP CS4
Color and tonal adjustments
Last updated 1/10/2010
Save and apply presets using the Adjustments panel
The Adjustments panel has a list of presets for common color and tonal adjustments. In addition, you can save and
apply presets for Levels, Curves, Exposure, Hue/Saturation, Black & White, Channel Mixer, and Selective Color. When
you save a preset, it’s added to the presets list.
• To save adjustment settings as a preset, choose the Save Preset option from the Adjustments panel menu.
• To apply an adjustment preset, click the triangle to expand the list of presets for a specific adjustment and then click
a preset. Alt-click (Windows) or Option-click (Mac OS) a triangle to expand all presets.
Color adjustment commands
You can choose from the following color adjustment commands:
Adjust Levels Auto Quickly corrects the color balance in an image. Although its name implies an automatic
adjustment, you can fine-tune how the Auto Color command behaves. See “ Remove a color cast using Auto Color ” on
page 191.
Levels command Adjusts color balance by setting the pixel distribution for individual color channels. See “ Adjust
color using Levels ” on page 167.
Curves command Provides up to 14 control points for highlight, midtone, and shadow adjustments for individual
channels. See “ Curves overview ” on page 168.
Exposure command Adjusts tonality by performing calculations in a linear color space. Exposure is primarily for use
in HDR images. See “ Adjust Exposure for HDR images ” on page 178.
Vibrance command Adjusts color saturation so clipping is minimized. See “ Adjust color saturation using Vibrance ”
on page 175.
Photo Filter command Makes color adjustments by simulating the effects of using a Kodak Wratten or Fuji filter in
front of a camera lens. See “ Change the color balance using the Photo Filter command ” on page 188.
Color Balance command Changes the overall mixture of colors in an image. See “ Apply the Color Balance adjustment ”
on page 188.
Hue/Saturation command Adjusts the hue, saturation, and lightness values of the entire image or of individual color
components. See “ Adjust hue and saturation ” on page 172.
Match Color command Matches the color: from one photo to another photo, from one layer to another layer, and from
a selection in an image to another selection in the same image or a different image. This command also adjusts the
luminance and color range and neutralizes color casts in an image. See “
Match the color in different images ” on
page 181.
Replace Color command Replaces specified colors in an image with new color values. See “ Replace the color of objects
in an image ” on page 184.
Selective Color command Adjusts the amount of process colors in individual color components. See “ Make selective
color adjustments ” on page 187.
Channel Mixer command Modifies a color channel and makes color adjustments not easily done with other color
adjustment tools. See “ Mix color channels ” on page 185.