回答

1

从图(a)可以看出,链式码出来是如下:

Chain Code of figure (a)

根据[2] - 186页;曲率通过以下伪代码计算出来:

c = d - di 

for all di such that d remains within a limit of ±2 (critical point of a chain code) 

if c < 2 then c+7 
if c > 2 then c-7 

因此,这给出了所需的结果(b)。

参考:Google Books