Methods and apparatus for winding wire coils on cores of dynamo-electric machine components such as stators and alternators are provided. The method of the invention applies a transparentizing material to a preselected application site of the paper substrate, and exposes the transparentizing material to heat for a predetermined period of time to help facilitate penetration of the transparentizing material into the paper substrate and prevent migration of the transparentizing material from the application site. A matching processor performs pixel matching between the first image and the second image, and a result thereof is recorded as a corresponding point file.