Neat Image will cover the linen effect in some old photos. However to completly remove the effect, the image becomes plastic. I lost a program that would address the issue of the polygon affect, by allowing the choice of the number of sides of the polygon.
Perhaps that procedure could added to neat image?
I don't how I lost the program, probably during a crash. The program allowed the user to pick from alist of polygons. For the school pictures it was hexagon. You could vary the size and strenght. Thats all there was in the program but it would address the linen affect.
The image did't show as I would like, needs to be enlarged to see the hexagons.
Now all you have to do is build a program that has a screen like this and will target only the screen lines, seams easy to me (HAHAHAHAHAH).