1 Select the object with the Pick tool.
2 Click Effects, Color Adjustment, Level Equalization.
3 Enable one of the following buttons:
• Set Input Values — sets the minimum values for the Input Value Clipping and the Output Range Compression
• Set Output Values — sets the maximum values for the Input Value Clipping and the Output Range Compression
4 Click one of the following eyedroppers:
• Set Input Values Eyedropper tool — lets you choose a color for the input values
• Set Output Values Eyedropper tool — lets you choose a color for the output values
5 Click a color in the Drawing Window.
6 Choose a color channel from the Channels list box.
7 Enable the Auto-Adjust check box to automatically redistribute pixel values throughout the tonal range.
8 Move the Gamma Adjustment slider to set the midtones.
9 Do one of the following histogram sliders:
• Input Value Clipping — sets a clipping range for the darkest and brightest pixels in the image
• Output Range Compression — sets an output brightness value for the darkest and brightest pixels in the image
• Click the Options button and set values in the Black Limit To and White Limit To boxes to adjust the percentage of outlying pixels on either end of the tonal range.
• Enabling the Automatically check box causes a percentage of the extreme brightness values to be ignored when the lightest and darkest pixels are identified in the histogram. Disabling the Automatically check box lets you set the amount of clipping by typing a value in the Display Clipping Percent box.
• You can adjust each channel separately, or simultaneously in the composite channel.
^ • You can also adjust the input and output values of the shadows and highlights by typing precise values in the Input Value Clipping Boxes and the Output Range Compression boxes.
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