erode, dilate, etc.  
More...
|  | 
|  | dilate | 
|  | Dilation(morphological operator) for images. 
 | 
|  | 
|  | dilate3d | 
|  | Dilation(morphological operator) for volumes. 
 | 
|  | 
|  | erode | 
|  | Erosion(morphological operator) for images. 
 | 
|  | 
|  | erode3d | 
|  | Erosion(morphological operator) for volumes. 
 | 
|  | 
erode, dilate, etc.