I'm trying to do the following: I need to take a lot of profiles of faces in the same position and converts the face to white and the background to black (I'll be taking the photos against a blue background).
What I need is that the patch will automatically take the picture when the person's nose is two thirds of the way into the frame.
Basically I need somehow to detect when the person's nose crosses a certain position in the matrix the camera is feeding into.
I don't really know how to get started on this...any help would be appreciated. I'm including the patch that takes the pictures and processes the colors.