Abstract:

Canny operator is an operator with ideas of optimization, which has higher detection accuracy. Since this operator is easily affected by noise, it is essential to filter out the noise by the Gaussian filter. Robinson operator can suppress noise, but cannot obtain single pixel edge by detection. We analyze the defects of original nonmaximum suppression judging conditions, and propose a new detection algorithm combing the idea of Canny operator with Robinson operator, which can effectively suppress noise while obtaining single pixel edges. Data analysis and experimental results validate the effectiveness of the proposed algorithm.

Key words: Canny operator;Robinson operator;nonmaximum suppression;noise;single pixel edge