Morphology Open

Mathematical morphology is a method of processing digital images on the basis of shape. Morphing is available during the working over images. Morphology Open is just an erosion operation followed by a dilation operation. Applying Morphology Open more than once produces no further effect.

Radius and shape of a structuring element for the erode and dilate operators are specified by the correspoding controls.

To use the Morphology Open filter:

Choose Filters > Morphology > Open