Just got my outline working. The procedure I was using was right. I was trying to do too much in one step. The photos I am using are already almost silhouttes. They are profiles of my grandaughter taken in front of an outside window. They are backlighted.
During this fiasco I have learned quite a bit about image manipulation in
VB Net. Now I am about to get whipped by databases.
I think I will take a walk and then jump into coordinate saving, scaling, sorting,etc etc.