关键词: 边缘检测, Canny算子, 多尺度, 直方图

Abstract: The main shortcoming of traditional Canny operator is that, its parameters need to be set by manual. To solve this problem, it introduces an adaptive multiscale Gauss filter by using intensity image’s mean square value histogram, which can remove noise and remain edge character. It self-adaptably generates thresholds by intensity image’s gradient character information, and detects edge automatically. Experiments show that, compared with the traditional Canny operator, this method can keep edge information well, and has better practicability.

Key words: edge-detection, Canny operator, multiscale, histogram