Morphology Black Hat

Mathematical morphology is a method of processing digital images on the basis of shape. Morphing is available during the working over images. Morphology Black Hat is implemented by applying the closing operator to the original image, then by subtracting the original image from the result.

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

To use the Morphology Black Hat filter:

Choose Filters > Morphology > Black Hat