边缘检测算子检测突变边缘的效果比较

Effect Comparison of Edge Detecting Operators to Detect Break Edge

分析了prewitt,robert,sobel,log,canny等边缘检测算子的抗干扰能力,对V型图像的边缘检测技术进行了系统的研究,分析了不同的边缘检测算子的边缘检测实验结果。利用小波变换检测信号边缘的优势,找出信号突变点,从而找到图像的边缘,但边缘不够完整。为克服小波变换的不足,经小波变换后再采取中心取样,最后采用Hough变换加以完善,就能获取较理想的结果。

The paper analyses edge detecting arithmetic operator anti -jamming ability of prewitt, robert, sobel, log and canny, studies the technology for detecting the image edge of V- groove,and analyses the experiment results of edge detecting with different edge detecting arithmetic operators. With the advantages of the wavelet analysis edge detecting, finds out signal break point and the edge of image. Because edge of V- groove is not so good,central sampling is used after wavelet transform for remedy disadvantage of wavelet transform. At last ideal result are gained after adopting Hough transform.