Reaction–Diffusion Processor: Possibilities and Limitations - Molecular Computing: Origins and Promises - page 147

Fig. 5.19 “Watershed” operation performed by the Belousov-Zhabotinsky medium

Fig. 5.20 Processing of aerial photographs by the Belousov-Zhabotinsky medium: positive (a)
and negative (b) photographs

extract the network of roads in the aerial photographs of cities. The same problem
can be solved by the Belousov-Zhabotinsky media. Figure 5.21 shows the original
image of the city center (Fig. 5.21a ), a preliminary detection of the road network by
mathematical morphology (Fig. 5.21b ), and an analogous operation performed by a
medium of the Belousov-Zhabotinsky type (Fig. 5.21c ).

5.2.3 Images, Optical Illusions, and Reaction-Diffusion

Media

The vision of mammals and, in particular, human vision are the most complex and
sophisticated phenomenon of the activity of the cerebral cortex. The image of the
reality surrounding a man is projected onto the eye retina, and after a series of
transformations in the optic tract, it enters the visual cortex (Fig. 5.22 ). This is a