You misunderstand. This is not an artifact from scanning, it is an optical illusion created by the direction of the shadows on the ground during the image capture from the airplane. the two photos show the same extents and the same groundsurface, but the features that are raised appear sunken and the features that are sunken appear raised. When you rotate the photo 180 degrees, the features invert and what was sunken appears raised and what was raised appears sunken.
My question is what method exists (if any) that will produce the inversion of features without rotating the image.
Regards,
Jim