Adobe photoshop cs2 사용자 설명서
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ADOBE PHOTOSHOP CS2
User Guide
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Default Curves dialog boxes for CMYK and RGB images
A. Default orientation of CMYK tonal output bar B. CMYK Input and Output values in percentages C. Default orientation of CMYK ton
al input bar D. Default orientation of RGB tonal output bar E. RGB Input and Output values in intensity levels F. Default orientation of
RGB tonal input bar
A. Default orientation of CMYK tonal output bar B. CMYK Input and Output values in percentages C. Default orientation of CMYK ton
al input bar D. Default orientation of RGB tonal output bar E. RGB Input and Output values in intensity levels F. Default orientation of
RGB tonal input bar
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To make the Curves grid smaller, hold down Alt (Windows) or Option (Mac OS), and click the grid. Alt/Option-
click again to make the grid larger.
click again to make the grid larger.
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To make the Curves dialog box larger or smaller, click the icon in the lower right corner.
Clicking the Auto button applies either an Auto Color, Auto Contrast, or Auto Levels correction, depending on the
settings in the Auto Color Correction Options dialog box. For more information on specifying the settings for Auto
Color, Auto Contrast, or Auto Levels, see “To set Auto Color Correction options” on page 309.
settings in the Auto Color Correction Options dialog box. For more information on specifying the settings for Auto
Color, Auto Contrast, or Auto Levels, see “To set Auto Color Correction options” on page 309.
Adjusting color and tonality with Curves
Changing the shape of the curve in the Curves dialog box alters the tonality and color of an image. Bowing the curve
upward or downward lightens or darkens the image, depending on whether the dialog box is set to display levels or
percentages. The steeper sections of the curve represent portions of an image with more contrast. Conversely, flatter
sections of the curve represent areas of lower contrast.
upward or downward lightens or darkens the image, depending on whether the dialog box is set to display levels or
percentages. The steeper sections of the curve represent portions of an image with more contrast. Conversely, flatter
sections of the curve represent areas of lower contrast.
If the Curves dialog box is set to display levels rather than percentages, the highlights are represented in the top right
corner of the graph. Moving a point in the top portion of the curve primarily adjusts the highlights; moving a point
in the center of the curve primarily adjusts the midtones; and moving a point in the bottom section of the curve
primarily adjusts the shadows. Moving a point either down or to the right maps the Input value to a lower Output
value, and the image darkens. Conversely, moving a point either up or to the left maps a lower Input value to a higher
Output value, and the image lightens. So, if you want to lighten the shadows, move up a point near the bottom of the
curve. And, if you want to darken highlights, move down a point near the top of the curve.
corner of the graph. Moving a point in the top portion of the curve primarily adjusts the highlights; moving a point
in the center of the curve primarily adjusts the midtones; and moving a point in the bottom section of the curve
primarily adjusts the shadows. Moving a point either down or to the right maps the Input value to a lower Output
value, and the image darkens. Conversely, moving a point either up or to the left maps a lower Input value to a higher
Output value, and the image lightens. So, if you want to lighten the shadows, move up a point near the bottom of the
curve. And, if you want to darken highlights, move down a point near the top of the curve.
Note: In general, only small curve adjustments are necessary to make tonal and color corrections to most images.
To adjust color and tonality with Curves
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Do one of the following:
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Choose Image > Adjustments > Curves.
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Choose Layer > New Adjustment Layer > Curves. Click OK in the New Layer dialog box
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(Optional) To adjust the color balance of the image, choose the channel or channels that you want to adjust from
the Channel menu.