图像处理中几种边缘检测算法的比较

边缘检测是图像处理和模式识别领域的基本课题。文章具体考察了 3种常用的边缘检测算法 ,并加以实现。最后对它们各自的特点进行了比较。索贝尔算子简单有效 ,坎尼算法和高斯的拉普拉斯算法能产生较细的边缘。它们各自有其优缺点 ,在实践中应根据待解决问题的特点和要求决定采用何种方法

Comparison of the Edge Detection Algorithms in Image Processing

The edge detection is one of the fundamental topics in the image analyses and the pattern recognition. The paper investigates three of the most common algorithms and implements these algorithms. A comparison among them is made. The analyses indicate that the Sobel operator is more simple and effective, the Canny detector and the Gausian's Laplacian algorithm yield thinner edges. In practice, choosing which algorithm largely depends on the nature of the investigation problem.