Figure 10: The stereogram processing loop

1.  Read a line from the depth file
2.  Initialize the pattern
3.  last_pixel = depth_line[0]
4.  Loop through the depth_line j=0, width
   5.  this_pixel = depth_line[j]
   6.  If this_pixe l> last_pixel
       shorten the pattern
   7.  If this_pixel < last_pixel
       lengthen the pattern
   8.  Perform no change to the pattern
9.  Save the processed pattern
10. Perform random substitution
11. Save the random pattern
12. go back to 1 until you've read the entire depth file