LV Find Circular Edge 2 library function?

[Chillface]

Hi,

I have been using the IMAQ Find Circular Edge vi to determine pixel information about images being generated in my lab.  The program works fine, but upon looking into the vi, I couldn't seem to find the function or algorithm actually used to determine the edge.  It lists it as LV_FindCircularEdge2, and the library call node lists the function inputs and the call itself, but not the contents of the function, and searching through the help library or online isn't turning this information up.  Can anyone tell me the function?  I am not interested in altering it, just would like to know exactly how it is done for the sake of understanding it.

Thanks in advance.

[Cole_R]

Hi,

Unfortunately, how the actual function is operating in the dll call is proprietary and as such, there isn't going to be documentation available to the public for how the function is working.  Sorry I couldn't provide you with more information, but glad to hear that you have your application is working!

[lacVIEW]

I am not sure if this helps, but here is a whitepaper that describes how the geometric matching technique is used in LabVIEW. 

http://zone.ni.com/reference/en-XX/help/372916L-01/nivisionconcepts/geometric_matching_technique/

[Chillface]

I had suspected as much, but it's not a problem.  Thanks for the info!