Sean I'm using NI 1409 Frame grabber with LabView 6.1 and Vision 6.1 Pattern matching Vi's using the "IMAQ Setup Match Pattern.Vi and IMAQ Match Pattern that uses LV_MatchPattern. So the Algorithm is NI's.
I'm trying to figure out the reason that it sometimes can't find the pattern at all. As mentioned the Image is basically a grey image with very little contrast and has a faint pattern in it but is relatively noisy. Basically an explanation on what can happen in the algorithm that causes this failure. As mentioned in my first message , I don't think this is a valid test that my customer is doing so I would like to have a good explanation why it is not good.
