Erode

Applies an erode filter to the image. This can be useful for shrinking mask.

user

Container for user-defined plugs. Nodes should never make their own plugs here, so users are free to do as they wish.

out

The output image generated by this node.

enabled

Turns the node on and off.

in

The input image

radius

The size of the filter in pixels. This can be varied independently in the x and y directions.

boundingMode

The method used when the filter references pixels outside the input data window.

expandDataWindow

Expands the data window to include the external pixels which the filter radius covers.

masterChannel

If specified, this channel will be used to compute the pixel index to select for all channels. You would probably want to use this with a channel that represents the overall luminance of the image. It will produce a rank filter which is lower quality, but preserves additivity between channels, and is a bit faster.