The RGB Color Corrector effect adjusts the color in a clip by applying adjustments to the tonal ranges that you define for the highlights, midtones, and shadows. The effect lets you make tonal adjustments to each color channel individually. You can also specify the color range to be corrected by using the Secondary Color Correction controls.

Output

Lets you view adjustments in the Program monitor as the final results (Composite), tonal value adjustments (Luma), display of the alpha matte (Mask), or a tri‑tone representation of where the shadows, midtones, and highlights fall (Tonal Range).

Show Split View

Displays the left or upper part of the image as the corrected view and the right or lower part of the image as the uncorrected view.

Layout

Determines whether the Split View images are side by side (Horizontal) or above and below (Vertical).

Split View Percentage

Adjusts the size of the corrected view. The default is 50%.

Tonal Range Definition

Defines the tonal range of the shadows and highlights using threshold and falloff controls:

Shadow Threshold

Determines the shadow’s tonal range.

Shadow Softness

Determines the shadow’s tonal range with falloff.

Highlight Threshold

Determines the highlight’s tonal range.

Highlight Softness

Determines the highlight’s tonal range with falloff.

Choose Tonal Range from the Output pop‑up menu to view the highlights, midtones, and shadows as you adjust the Tonal Range Definition controls.

Tonal Range

Specifies whether the color correction is applied to the entire image (Master), the highlights only, midtones only, or shadows only.

Gamma

Adjusts the image’s midtone values without affecting black and white levels. Use this control to adjust images that are too dark or too light, without distorting shadows and highlights.

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.