I'm developing an OpenCV Face Recognition application in C++ in VisualStudio 2010. I've been using all three methods, but mostly leaning towards LBP. The point of the application is to compare percent similarity of images of faces to a specific face from a training set. Is there a way to turn the returned confidence value from the predict method into a percent value that makes sense? I know that these values correspond somewhat to a distance between faces, and a lower number corresponds (inversely) to a higher confidence level, but where does the actual number come from? I want to return a percent similarity for my application, but I'm not sure what the returned confidence means.
Thanks a bunch!
Natalie