Dilation, Erosion, Opening, Closing

• Original Binary Image: Black
• Structure Element: Red
• Resultant Image: White

Dilation and Erosion

Dilation ------------------ Erosion

Closing and Opening

Closing ------------------- Opening

Opening is an erosion followed by a dilation operation. Closing is a dilation followed by an erosion operation.

In decreasing order: Dilation, Closing, Original, Opening and Erosion

Grey level Morphology

Left: Dilated, Right: Closed

Left: Original, Right: Opened

Eroded

Non Linear Smoothing

Left: original, Right: Opening followed by a Closing

• Building a visual program (workspace) in cantata
• Execute the visual program dil-ero-open-close.wk