Based on basic graphs of image labeling, an automaton, with the boundary chain code as its outputs, for the boundary recognition of the two-value digital images, is constructed.
利用图像标定的基本图，为二值图像边界的识别构造了一个自动机，自动机的输出就是边界链编码。
2
The cellular automaton may apply to the digital image encryption technology by its divergence in space, time and state.