Figure 5 The triple thick edges on the left side produce the distorted objects on the right side.

00000000000000000000  --------------------
00000001000000000000  --------------------
00000011100000000000  --------------------
00000111110000000000  --------------------
00001110111000000000  -------*------------
00011100011100000000  ------***-----------
00111111111110000000  --------------------
01111111111111000000  --------------------
11111111111111100000  --------------------
00001111111111111100  --------------------
00001111111111111100  --------------------
00001111111111111100  --------------------
00001111111111111100  --------------------
00001110000000011100  -------********-----
00001110000000011100  -------********-----
00001110000000011100  -------********-----
00001111111111111100  --------------------
00001111111111111100  --------------------
00001111111111111100  --------------------
00000000000000000000  --------------------
00000000000000000000  --------------------