Adobe 25520388 User Guide - Page 366

USING ADOBE PREMIERE PRO 361 Effects and transitions Pedestal Adjusts an image by adding a fixed offset to the image's pixel values. Use this control with the Gain control to increase an image's overall brightness. Gain Affects the overall contrast ratio of an image by adjusting brightness values by multiplication. The lighter pixels are affected more than darker pixels. RGB Lets you adjust the midtone values, contrast, and brightness of each color channel individually. Click the triangle to expand the options for setting the gamma, pedestal, and gain of each channel. • Red Gamma, Green Gamma, and Blue Gamma Adjusts the red, green, or blue channel's midtone values without affecting black and white levels. • Red Pedestal, Green Pedestal, and Blue Pedestal Adjusts the tonal values in the red, green, or blue channel by adding a fixed offset to the channel's pixel values. Use this control with the Gain control to increase the channel's overall brightness. • Red Gain, Green Gain, and Blue Gain Adjusts the red, green, or blue channel's brightness values by multiplication so that lighter pixels are affected more than darker pixels. Secondary Color Correction Specifies the color range to be corrected by the effect. You can define the color by hue, saturation, and luminance. Click the triangle to access the controls. Note: Choose Mask from the Output menu to view the areas of the image that are selected as you define the color range. Center Defines the central color in the range that you're specifying. Select the Eyedropper tool and click anywhere on your screen to specify a color, which is displayed in the color swatch. Use the + Eyedropper tool to extend the color range, and use the - Eyedropper tool to subtract from the color range. You can also click the swatch to open the Adobe Color Picker and select the center color. Hue, Saturation, and Luma Specify the color range to be corrected by hue, saturation, or luminance. Click the triangle next to the option name to access the threshold and softness (feathering) controls to define the hue, saturation, or luminance range. Soften Makes boundaries of the specified area more diffuse, blending the correction more with the original image. A higher value increases the softness. Edge Thinning Makes the specified area more sharply defined. The correction becomes more pronounced. A higher value increases the edge definition of the specified area. Invert Limit Color Corrects all colors except for the color range that you specified with the Secondary Color Correction settings. More Help topics "Apply the Color Correction effects" on page 313 "Adjust color and luminance using curves" on page 318 RGB Curves effect The RGB Curves effect adjusts a clip's color using curve adjustments for each color channel. Each curve lets you adjust up to 16 different points throughout an image's tonal range. You can also specify the color range to be corrected by using the Secondary Color Correction controls. Jeff Sengstack explains how to adjust color channels using RGB Color Corrector and RGB Curves effects in this lynda.com video from his tutorial -- Premiere Pro: Color Correction and Enhancement. Last updated 1/16/2012