TYPE: COP
TITLE: Dilate/Erode COP

This operation expands and shrinks mattes, in a more efficient, less
rounded way than the expand operation.

Middle click on the dialog '?' help for more help on maskable operations.

Parameters:
Dilate/Erode
    Size             - The number of pixels to dilate or erode.  Positive
                       values are dilations, while negative are erosions.	
    Y Size           - The vertical size of the effect can be de-coupled from
                       the horizontal.
    Units            - Whether Size and Y-Size are in pixels or uv coordinates.

Mask & Plane Scope, Frame Scope
    Overview - See extra help (Middle click on the dialog '?' help).
 
Local Variables:
    L   - Sequence length
    S   - Start of sequence
    E   - End of sequence
    IL  - Input sequence length
    SR  - Sequence frame rate
    NP  - Number of planes in sequence
    W,H - Width and height of image
    I   - Image index (0 at start frame)
    IT  - Image time (0 at start frame)
    AI  - Current plane array index
    PI  - Current plane index
    PC  - Num of channels in current plane

See Also: Expand
