Adobe 65021048 User Guide - Page 281

ADOBE PREMIERE PRO CS3 275 User Guide 4 (Optional) Drag the slider, scrub the underlined text, or type a value for the channel's constant value (Red-Const, Green-Const, or Blue-Const). This value adds a base amount of a channel to the output channel. 5 (Optional) Select the Monochrome option to create an image containing only gray values. This option achieves this result by applying the same settings to all the output channels. See also "Channel Mixer effect" on page 310 Isolate a single color using Color Pass The Color Pass effect lets you isolate a single color or a range of colors. Adjustments are made in a dialog box showing the Clip Sample and Output Sample. You can also adjust the Color Pass effect properties in the Effect Controls panel. If you want to color correct a single color or range of colors in a clip, use the Secondary Color Correction controls in the Color Correction effects. 1 Drag the Color Pass effect to a clip. 2 In the Effect Controls panel, click the Setup icon for the Color Pass effect. 3 In the Color Pass Settings dialog box, do one of the following to select the color that you want to preserve: • Move the pointer into the Clip Sample (the pointer turns into an eyedropper) and click to select a color. • Click the color swatch, select a color in the Adobe Color Picker, and then click OK to close the Adobe Color Picker. The selected color appears in the Output Sample. 4 For the Similarity option, drag the slider or enter a value to increase or decrease the color range to be preserved. 5 To reverse the effect, so that all colors except the specified color are preserved, select the Reverse option. To animate this effect, use the keyframe features in the Effect Controls panel. See also "Color Pass effect (Windows only)" on page 334 "Specify a color or range of colors to adjust" on page 271 Adjust edges, blurs and brightness using Convolution presets You can control the fine details of blurring, embossing, sharpening, and other effects by applying the Convolution Kernel effect or one of the convolution presets based on it. Convolution Kernel, and the presets based on it, apply a grid of brightness values to each pixel in a frame and all its neighbors, one pixel at a time. You can set the values for each cell in the grid using sliders in the Effect Controls panel, and you can use keyframes to change these values over time. To achieve a desired effect, it is often easier to apply one of the convolution presets and to modify it, than to apply and modify the Convolution Kernel effect itself. 1 In the Effects panel, click the triangle to expand the Video Effects bin, and then click the triangle to expand the Adjust bin. 2 Drag the Convolution Kernel effect to the clip in the Timeline panel. April 1, 2008