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image-processing

Opening and closing

taught

Erosion-then-dilation to strip small bright noise without changing a shape's overall size, and dilation-then-erosion to fill small dark gaps.

Taught in

Opening and closing
Digital Image Processing

Requires

dilation required

Required by

The morphological gradient, top-hat, and black-hat required

Local knowledge map

Local knowledge map

Click to expand

Solid arrows are required prerequisites; dashed are recommended or helpful. Lower rows are more foundational. Click any box to jump to that concept.