Application Examples
In order to illustrate the capabilities of the vertex chain code. We present some results of shape comparison, and noisy shapes. Fig. 5.20 shows a digitalized image, which displays shapes of the real world. These shapes correspond to plant and tree leaves.
Fig. 5.21a presents the "fig leaf" composed of pixels. Fig. 5.21b shows the discrete contour of the "fig leaf" and its counterclockwise chain. Note that the starting point normalized is represented by a point over the contour. Fig. 5.21c shows the chain of the "fig leaf" already invariant under starting point. Fig. 5.22 shows the discrete contours of the plant and tree leaves and their corresponding chains, presented in Fig. 5.20, respectively. The chains of these shapes were obtained using the concepts of the VCC.