Adobe photoshop cs2 사용자 설명서
ADOBE PHOTOSHOP CS2
User Guide
295
The pixel values are adjusted throughout the image proportionately to the new highlight values. Any pixels lighter
than the area you clicked are clipped (adjusted to level 255, pure white). The Info palette shows the values both before
and after the color adjustment.
than the area you clicked are clipped (adjusted to level 255, pure white). The Info palette shows the values both before
and after the color adjustment.
Setting the target value for the Set White Point Eyedropper tool and then clicking a highlight to assign it the target value
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To assign shadow values to the darkest area of the image that you want preserved, double-click the Set Black Point
Eyedropper tool
in the Levels or Curves dialog box to display the Color Picker. Enter the values you want to
assign to the darkest area in the image, and click OK. Then click the shadow you identified in step 3.
When you’re printing on white paper, you can usually achieve a good shadow in an average-key image using CMYK
values of 65, 53, 51, and 95. An approximate RGB equivalent is 10, 10, 10, and an approximate grayscale equivalent
is a 96% dot.You can approximate these values quickly by entering 4 in the Brightness (B) text box under the HSB
area of the Color Picker.
values of 65, 53, 51, and 95. An approximate RGB equivalent is 10, 10, 10, and an approximate grayscale equivalent
is a 96% dot.You can approximate these values quickly by entering 4 in the Brightness (B) text box under the HSB
area of the Color Picker.
With a high-key image, you may want to set the shadow to a higher value to maintain detail in the highlights. Exper-
iment with Brightness values between 4 and 20.
iment with Brightness values between 4 and 20.
Making hue/saturation and color balance corrections
The Hue/Saturation command
The Hue/Saturation command lets you adjust the hue, saturation, and brightness of a specific color component in an
image or simultaneously adjust all the colors in an image. In Photoshop, this command is especially good for fine-
tuning colors in a CMYK image so that they are in the gamut of an output device.
image or simultaneously adjust all the colors in an image. In Photoshop, this command is especially good for fine-
tuning colors in a CMYK image so that they are in the gamut of an output device.
You can save settings in the Hue/Saturation dialog box and load them for reuse in other images. For more infor-
mation, see “To save and reapply settings in a dialog box” on page 282.
mation, see “To save and reapply settings in a dialog box” on page 282.