11. The computer program product of claim 10 , wherein the detecting the edges of all marks including detecting transition between white to black or black to white that are spatially related.
11. The computer program product of claim 10 , wherein the detecting the edges of all marks including detecting transition between white to black or black to white that are spatially related. 12. The computer program product of claim 11 , wherein the edges will disconnect the strike through from the text.