5.1.1

Chapter 19 Filters 758
Channel Blur
Gives you control over blurring each color channel of an object. The Channel blur can be applied
selectively to each color channel of an object: red, green, blue, and alpha. Blurring individual
channels lets you create customized glow eects by retaining sharpness in selected channels
while softening others.
Original image Channel Blur filter applied
(Amount = 250, Blur Red on)
Parameters in the Inspector
•
Amount: Sets the radius of the object blur.
•
Blur Red: Sets the blur to aect the red channel.
•
Blur Green: Sets the blur to aect the green channel.
•
Blur Blue: Sets the blur to aect the blue channel.
•
Blur Alpha: Sets the blur to aect the alpha channel.
•
Horizontal: Sets the percentage of maximum horizontal blur. This is a percentage of the
Amount parameter.
•
Vertical: Sets the percentage of maximum vertical blur.
•
Crop: Sets whether the image is cropped beyond its original borders.
•
Mix: Sets the percentage of the original image to be blended with the blurred image.
Circle Blur
Creates a circular blur within an image, specied by a center point that sets the center of the blur
eect and a radius that sets the size of the aected region. The amount of blur in the aected
area can also be customized.
This lter is useful for blurring a limited area in an image. For more sophisticated control of the
image region to be blurred, use the Compound Blur lter.
This lter causes rasterization in 3D groups. For more information on rasterization, see Groups
and rasterization on page 1045.
Original image Circle Blur filter applied
67% resize factor