Adobe AFTER EFFECTS CS3 PROFESSIONAL User Manual page 110

Use the tone curve in the Parametric tab to adjust the values in specific tonal ranges in the image. The areas of the
curve affected by the region properties (Highlights, Lights, Darks, or Shadows) depend on where you set the split
controls at the bottom of the graph. The middle region properties (Darks and Lights) mostly affect the middle region
of the curve. The Highlight and Shadows properties mostly affect the ends of the tonal range.
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To adjust tone curves, do any of the following:
• Drag the Highlights, Lights, Darks, or Shadows slider in the Parametric tab. You can expand or contract the curve
regions that the sliders affect by dragging the region divider controls along the horizontal axis of the graph.
• Drag a point on the curve in the Point tab. As you drag the point, the Input and Output tonal values are displayed
beneath the tone curve.
• Choose an option from the Curve menu in the Point tab. The setting you choose is reflected in the Point tab, but
not in the settings in the Parametric tab. Medium Contrast is the default setting.
Saturation and Vibrance controls in Camera Raw
You can change the color saturation (vividness or color purity) of all colors by adjusting the Vibrance and Saturation
controls in the Basic tab. (To adjust saturation for a specific range of colors, use the controls in the HSL / Grayscale tab.)
Adjusts the saturation so that clipping is minimized as colors approach full saturation, changing the
Vibrance
saturation of all lower-saturated colors with less impact on the higher-saturated colors. Vibrance also prevents skin
tones from becoming oversaturated.
Adjusts the saturation of all image colors equally from -100 (monochrome) to +100 (double the
Saturation
saturation).
HSL / Grayscale controls in Camera Raw
You can use the controls in the HSL / Grayscale tab to adjust individual color ranges. For example, if a red object
looks too vivid and distracting, you can decrease the Reds values in the nested Saturation tab.
The following nested tabs contain controls for adjusting a color component for a specific color range:
Changes the color. For example, you can change a blue sky (and all other blue objects) from cyan to purple.
Hue
Changes the color vividness or purity of the color. For instance, you can change a blue sky from gray to
Saturation
highly saturated blue.
Changes the brightness of the color range.
Luminance
If you select Convert To Grayscale, you see only one nested tab:
Use controls in this tab to specify the contribution of each color range to the grayscale version of the
Grayscale Mix
image.
Tone a grayscale image in Camera Raw
Use the controls in the Split Toning tab to color a grayscale image. You can add one color throughout the tonal range,
such as a sepia appearance, or create a split tone result, in which a different color is applied to the shadows and the
highlights. The extreme shadows and highlights remain black and white.
You can also apply special treatments, such as a cross-processed look, to a color image.
Select a grayscale image. (This can be an image that you converted to grayscale by selecting Convert To Grayscale
1
in the HSL / Grayscale tab.)
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