End points  
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Menu:   Processing > Morphology… > Geodesy->End points  
Script:   ends  
 
Use this command to find end points of skeletons in multiphase images
or end points of intensity ridges in color and grayscale images. The function works by extracting only those pixels located at the ends of thin bright structures. Note that the Thinning
.procedure should be performed on a multiphase image before this function is applied.

If you choose this command, the following options will become available:

Input
 
Displays the input image frame number. If you want to process another image, type or select the corresponding value.  

Output
 
Displays the number of the frame in which the output image will be created. Depending on the Preferences. ImageWarp will set it either to the first available value or to the Input frame number. Type or select another value if you want the output image to be created in a different frame.  
 
Preview
 
Select this check box to watch the Preview of the output image.  

Probe
 
Lets you chose the size and shape of the kernel used in the operation. Probe elements with check marks are active, empty elements are ignored. Choose among the following most usable kernels:  

#1
1x3 vertical bar
#4
3x1 horizontal bar
#5
3x3 cross
#10
3x3 diagonal cross
#15
3x3 square
#16
5x5 circle