Adobe Photoshop CS4 - Manual (Page 181)

174 USING PHOTOSHOP CS4
Color and tonal adjustments
Last updated 1/10/2010
• Choose Layer > New Adjustment Layer > Hue/Saturation. Click OK in the New Layer dialog box.
Note: You can also choose Image > Adjustments > Hue/Saturation. But keep in mind that this method makes direct
adjustments to the image layer and discards image information.
2 In the Adjustments panel, choose a color from the menu just above the sliders.
Four color wheel values (in degrees) appear in the Adjustments panel. They correspond to the adjustment sliders that
appear between the color bars. The two inner vertical sliders define the color range. The two outer triangle sliders show
where the adjustments on a color range “fall off” (fall-off is a feathering or tapering of the adjustments instead of a
sharply defined on/off application of the adjustments).
3 Use either the eyedropper tools or the adjustment sliders to modify the range of colors.
• Click or drag in the image with the Eyedropper tool to select a color range. To expand the range, click or drag
in the image with the Add To Sample Eyedropper tool . To reduce the range of color, click or drag in the image
with the Subtract From Sample Eyedropper tool . While an eyedropper tool is selected, you can also press Shift
to add to the range, or Alt (Windows) or Option (Mac OS) to subtract from it.
• Drag one of the white triangle sliders to adjust the amount of color fall-off (feathering of adjustment) without
affecting the range.
• Drag the area between the triangle and the vertical bar to adjust the range without affecting the amount of fall-off.
• Drag the center area to move the entire adjustment slider (which includes the triangles and vertical bars) to select
a different color area.
• Drag one of the vertical white bars to adjust the range of the color component. Moving a vertical bar from the center
of the adjustment slider and closer to a triangle increases the color range and decreases the fall-off. Moving a vertical
bar closer to the center of the adjustment slider and away from a triangle decreases the color range and increases
the fall-off.
• Ctrl-drag (Windows) or Command-drag (Mac OS) the color bar so that a different color is in the center of the bar.
Hue/Saturation adjustment slider
A. Hue slider values B. Adjusts fall-off without affecting range C. Adjusts range without affecting fall-off D. Adjusts range of color and fall-off
E. Moves entire slider
If you modify the adjustment slider so that it falls into a different color range, the name in the Edit menu changes to
reflect this change. For example, if you choose Yellow and alter its range so that it falls in the red part of the color bar,
the name changes to Red
2. You can convert up to six of the individual color ranges to varieties of the same color range
(for example, Red through Red 6).
Note: By default, the range of color selected when you choose a color component is 30° wide, with 30° of fall-off on either
side. Setting the fall-off too low can produce banding in the image.
Colorize a grayscale image or create a monotone effect
1 If you are colorizing a grayscale image, choose Image > Mode > RGB Color to convert the image to RGB.
B C D E D C B A