Adobe Premiere Pro CS4 - Manual (Page 360)

354 USING ADOBE PREMIERE PRO CS4
Effects and transitions
Last updated 11/6/2011
Original image (left), and with effect applied (right)
Amount To Decolor How much color to remove. 100% causes areas of the image dissimilar to the selected color to
appear as shades of gray.
Color To Leave Use the eyedropper or Color Picker to determine which color to leave.
Tolerance The flexibility of the color-matching operation. 0% decolors all pixels except those that exactly match Color
To Leave. 100% causes no color change.
Edge Softness The softness of the color boundaries. High values smooth the transition from color to gray.
Match Colors Determines whether colors’ RGB values or hue values are compared. Choose Using RGB to perform
more strict matching that usually decolors more of the image. For example, to leave dark blue, light blue, and medium
blue, choose Using Hue and choose any shade of blue as Color To Leave.
Luma Corrector effect
(32-bit) The Luma Corrector effect lets you adjust the brightness and contrast in the highlights, midtones, and shadows
of a clip. 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) or tonal value adjustments
(Luma), display of the alpha matte (Mask) or a tritone 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 Percent 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 threshold with
falloff (softness) controls. Click the triangle to display the Tonal Range Definition controls. Drag a square slider to
adjust the threshold values. Drag a triangle slider to adjust the softness (feathering) value.
Note: Choose Tonal Range from the Output menu to view the different tonal ranges as you adjust the Tonal Range
Definition sliders.
Tonal Range Specifies whether the luminance adjustments are applied to the entire image (Master), the highlights
only, midtones only, or shadows only.
Brightness Adjusts the black level in a clip. Use this control so that the black picture content in your clip appears as
black.
Contrast Affects the image’s contrast by adjusting the gain from the clip’s original contrast value.
Contrast Level Sets the clip’s original contrast value.
Gamma Adjusts the image’s midtone values without affecting black and white levels. This control causes changes in
contrast, much like changing the shape of the curve in the Luma Curve effect. Use this control to adjust images that
are too dark or too light, without distorting shadows and highlights.