1. A method for evaluating optical distortion in a transparency, the method comprising: obtaining an electronic reference image of a structure having a plurality of visible index locations, the electronic reference image being obtained from a fixed imaging location relative to the structure; obtaining an electronic test image of the structure, the electronic test image being obtained from the fixed imaging location and through a transparency under test; computing displacement characteristics for the visible index locations, the displacement characteristics being based upon reference positions of the visible index locations captured in the electronic reference image and corresponding test positions of the visible index locations captured in the electronic test image; and generating optical distortion measurement data for the transparency under test, the optical distortion measurement data being based upon the displacement characteristics.