Adobe AFTER EFFECTS CS3 PROFESSIONAL User Manual page 398

The blending mode to use to combine the effect result with the original layer. These blending modes
Blending Mode
aren't available when averaging alpha channel values in the layer.
Color Stabilizer effect
The Color Stabilizer effect samples the color values of a single reference frame, or pivot frame, at one, two, or three
points; it then adjusts the colors of other frames so that the color values of those points remain constant throughout
the layer's duration. This effect is useful for removing flicker from footage and equalizing the exposure of footage
with color shifts caused by varying lighting situations.
Use this effect to remove the flicker common to time-lapse photography and stop-frame animation.
You can animate the effect control points that define the sample areas to track objects for which you want to stabilize
colors. The greater the difference in color values between the sample points, the better the effect works.
This effect works with 8-bpc and 16-bpc color.
Sets the pivot frame. Display the frame that has the area of brightness or color that you want to match,
Set Frame
and click Set Frame.
What to stabilize:
Stabilize
• Brightness is stabilized using one sample point (Black Point).
Brightness
• Color is stabilized using two sample points (Black Point and White Point).
Levels
• Color is stabilized using all three sample points (Black Point, White Point, and Mid Point).
Curves
Place this point on a dark area to stabilize.
Black Point
Place this point on a midtone area to stabilize.
Mid Point
Place this point on a bright area to stabilize.
White Point
Radius, in pixels, of sampled areas.
Sample Size
Colorama effect
The Colorama effect is a very versatile and powerful effect for converting and animating colors in an image. Using
the Colorama effect, you can subtly tint an image or radically change its color palette.
Colorama works by first converting a specified color attribute to grayscale and then remapping the grayscale values
to one or more cycles of the specified output color palette. One cycle of the output color palette appears on the
Output Cycle wheel. Black pixels are mapped to the color at the top of the wheel; increasingly lighter grays are
mapped to successive colors going clockwise around the wheel. For example, with the default Hue Cycle palette,
pixels corresponding to black become red, while pixels corresponding to 50% gray become cyan.
This effect works with 8-bpc and 16-bpc color.
Input Phase controls
The color attribute to use as input. Choose Zero to use a color attribute from another layer.
Get Phase From
The second layer to use as input. To use only this layer as input, select Zero for Get Phase From;
Add Phase
otherwise, both the Add Phase layer and the layer to which the effect is applied are used. You can choose the layer to
which the effect is applied to add a second input attribute from the same layer.
The color attribute from the second layer to use as input.
Add Phase From
AFTER EFFECTS CS3 392
User Guide