Well, I'll have to confess I've never used the Vision Express VIs. Vision processing is somewhat more difficult (in my opinion and experience) than "vanilla" LabVIEW development as many of the functions and utilities are, shall we be chariable?, "under-documented" and "under-exampled".
There are some books, including one only a few years old, on this topic. However, you would be very well advised to spend a few months learning LabVIEW (start with the tutorials, some of which are listed on the upper right part of the Forum's Home Page) and writing non-Vision code before trying to dive into the complexity that is processing of images.
Bob Schor
