Compound Blur

Use Compound Blur to create a blur based on the pixels of another channel, either in the same layer or from a different layer. In fact, the Compound Blur can be based on the output of any operator in the workspace. If you apply a Compound Blur based on luminance, the image is blurred where the pixel luminance is high, and it is not blurred where pixels are black.

Layer

Displays the Operator Picker. Use this to select the footage whose pixels are used to set the amount of blur applied.

Radius

Sets the blur strength. The Radius is measured in pixels.

Channel

Determines which channel in the source layer is used to set the amount of blur applied.

Blur Type

Determines whether the blur is a Box Blur or a Gaussian Blur.