模糊多尺度边缘检测算法应用研究

Application Study on Fuzzy Multiscale Edge Detection Algorithm

  • 摘要: 在小波多分辨分析的基础上提出了一种基于模糊判决的图像多尺度边缘检测算法.二进小波变换用于提供图像的多尺度描述,将模糊判决方法应用于不同尺度间的小波域,从而可以将各尺度的图像信息更加有效地合成,得到最优边缘检测效果.本文结合具体的图像信号将本算法与Canny算法、小波的Mallat算法进行了比较,结果证明了其可行性和有效性.

     

    Abstract: A fuzzy multiscale edge detection algorithm of image based on wavelet multiresolution analysis is presented in this paper. The dyadic wavelet transform is employed to produce the multiscale representation of image, and fuzzy decision method is applied in wavelet domain of different scales. The information of images with different scales can be synthesized effectively, and an optimal result of edge detection can be acquired. The paper compares the performances of the new algorithm with the Canny algorithm and Mallat's algori thm according to the concrete image signals. The results prove the feasibility and effectiveness of our algorithm over these other methods.

     

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