Patent ID: 9614995
Date: 2017-04-04
CPC Classifications: H04N

Claim:
1. A method for rendering a correlation mark pattern on a recording medium, comprising: electronically creating a first vector based pattern cell having first vectors; electronically creating a second vector based pattern cell having second vectors, said first vectors of said first vector based pattern cell being parallel to said second vectors of said second vector based pattern cell and said first vectors of said first vector based pattern cell being out of phase with said second vectors of said second vector based pattern cell; electronically creating a first electronic pattern ink, using said first vector based pattern cell, said first electronic pattern ink having an electronic painting procedure for said first vectors in said first vector based pattern cell defining an electronic painting of said first vectors as thin lines; electronically creating a second electronic pattern ink, using said second vector based pattern cell, said second electronic pattern ink having an electronic painting procedure for said second vectors in said second vector based pattern cell defining an electronic painting of said second vectors as thin lines; electronically painting, using said second electronic pattern ink, a background of a first electronic image region; electronically painting, using said first electronic pattern ink, a foreground in said first electronic image region; and rendering, using marking materials, said first electronic image region on the recording medium to create a first rendered image area such that a first pattern in the first rendered image area is only visible when viewing the first rendered image area through a reference screen, said first pattern in the first rendered image area being not visible when viewing the first rendered image area without the reference screen.