Corrosion: Scans each pixel in an image with a structural element (typically a 3x3 size), with the "and" operation of each pixel in the structure element with its covered pixels, or 1 if all 1, otherwise 0.
Bloat: Scans each pixel in an image with a structural element (typically a 3x3 size), with the "and" operation of each pixel in the structure element with its covered pixels, or 0 if all 0, otherwise 1.
Open: First corrosion and then swell. "Easy to remember the words, open the last fall on the enlargement, so is swell"
Closed: first expansion and then corrosion. "It's easy to remember, and it ends up shrinking, so it's corrosion."
Corrosion: Known as corrosion, is certainly a narrowing of the trend, to narrow the boundary, to remove noise;
Swelling: a swollen lap, filling a hole smaller than the structure.
Open: First thin after swelling, remove branches, smooth edges;
Closed: first fat after thin, fill holes, smooth boundaries.
"Restudying" morphological operation