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ADOBE PREMIERE PRO 2.0
User Guide
286
Color Balance effect
The Color Balance effect changes the amount of red, green, and blue color in a clip. The center point of each slider
is neutral and indicates no change. A setting of –100 removes all of the color; a setting of +100 intensifies the color.
The clip’s quality setting does not affect Color Balance. The Shadow/Midtone/Hilight channel Balance controls
specify the amount of a channel’s color in the darker, middle, and lighter color intensity ranges of a clip. Preserve
Luminosity preserves the average brightness of the image while changing the color. This control maintains the tonal
balance in the image.
Color Balance effect: Original (left) and with variations of Color Balance effect applied (right)
Convolution Kernel effect
The Convolution Kernel effect changes the brightness values of each pixel in the clip according to a predefined
mathematical operation known as a convolution. The Convolution Kernel Settings dialog box displays a grid that
represents a pattern of pixel brightness multipliers, with the pixel being evaluated in the center of the grid. Use this
effect to create custom blurs and embosses.
See also
“To adjust brightness using convolution” on page 276
Extract effect
The Extract effect removes colors from a video clip, creating a textured grayscale appearance. Control the clip’s
appearance by specifying the range of gray levels to convert to white or black.
See also
“To remove color in a clip” on page 275
Levels effect
The Levels effect manipulates the brightness and contrast of a clip. It combines the functions of the Color Balance,
Gamma Correction, Brightness & Contrast, and Invert effects.
The Levels Settings dialog box displays a histogram of the current frame. The
x
-axis of the histogram represents
brightness values from darkest (0) at the far left to brightest (255) at the far right; the
y
-axis represents the total
number of pixels with that value.
See also
“To adjust luminance using levels” on page 268
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