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Masked Variable Blur
The Masked Variable Blur blurs an image by an amount defined by a give mask image. Portions of the image for which the mask image has a black color value are not blurred. Portions of the image for which the mask image has white color are blurred with the maximum intensity, as defined by the blur radius.

Inputs and Outputs
Inputs:
Image (Image): The input image.Mask (Image): The grayscale mask image. Black colored areas are not blurred, while white colored areas are blurred with the maximum intensity.Radius (Float): The radius of the blur.
Outputs:
Output (Image): The output image.
Example
Here is a small example of this node in action:
