Figure 10: Denoise examples based ongravity center and chaos degree. The black point is the gravity center of pattern . The line denotes the distance of each pixel to , in which the red line is the maximum distance of black pixel to gravity center and the blue line is the minimum distance of white pixel to gravity center: (a) the chaos degree is 12; by moving the black pixel which has the maximum distance to white pixel which has the minimum distance, we get pattern (b) whose chaos degree is 7; by moving the black pixel, we get the pattern (c) whose chaos degree is 4, less than 5.