Morphological filter
#include "dip_morphology.h"
dip_Error PathOpening ( grey, mask, out, length, closing, constrained )
binary, integer, float
This function applies DirectedPathOpening in all possible directions and takes the supremum of all results. That is, it is the supremum of all possible openings with approximately linear structuring elements of length length.
The number of times that DirectedPathOpening is applied is given by ((3^D)-1)/2, with D the number of image dimensions. For example, in 2D there are 4 possible values for param: [length,0], [0,length], [length,length] and [length,-length] (note that, for example, [-length,0] produces the same result as [length,0]).
See DirectedPathOpening for more information.
| Data type | Name | Description |
| dip_Image | grey | Grey-value input image |
| dip_Image | mask | Mask image for ROI processing |
| dip_Image | out | Output image |
| dip_int | length | Length of structuring element (number of pixels) |
| dip_Boolean | closing | DIP_FALSE for path opening, DIP_TRUE for path closing |
| dip_Boolean | constrained | DIP_TRUE for constrained paths, DIP_FALSE for the original path opening algorithm |