Edge Detection Using Cellular Automata - Cellular Automata in Image Processing and Geometry - page 95

Fig. 5.10 Edges detected using Popovici and Popovici's [26] method (upper row threshold =
4; middle row threshold = 16; lower row threshold = 64)
Fig. 5.11 Edges detected using Diwakar et al. 's [7] method (upper row: single iteration;
lower row: iterated until convergence)