Learning immediately: https://edu.csdn.net/course/play/26281/327074?utm_source=blogtoedu
Image morphological operations:
1. Expansion
2. Corrosion
3. Open computing: after the first expansion of corrosion. Smooth contour cutting narrow area, and to eliminate spikes and small islands.
4. closing operation: After the first etching expansion. Smoothly contoured, discontinuous, and narrow elongated fusion ravines, and elimination of small holes.
Summary: Closed can effectively remove noise after first opening.
