Morphological Filters

Morphological filters change the shape of objects contained within an image. These filters are widely used before applying character and shape recognition algorithms because these filters can highlight the contour of the objects. Morphological filters can be applied to monochrome (binary) and grayscale images.

Black Ice imaging tools currently support the following morphological filters:

• Closing (binary)

• Closing (grayscale)

• Dilation (binary)

• Dilation (grayscale)

• Erosion (binary)

• Erosion (grayscale)

• HitMiss (binary)

• Opening (binary)

• Opening (grayscale)

• Outlining (binary)

• Skeleton (binary)

• Thickening (binary)

• Thinning (binary)

• TopHat (grayscale)