图像处理中边缘检测算法的研究

边缘检测是数字图像处理中基础而又重要的课题。文章具体考察了5种常用的边缘检测算子，并加以实现。最后对它们各自的特点进行了比较。梯度算子简单有效，LOG算法和Canny边缘检测器能产生较细的边缘。它们各自有其优缺点，在实际中应根据待解决问题的特点和要求决定采用何种方法。

Study on Edge Detection Algorithm in Image Processing

Edge detection is a basic and important subject in digital image processing.The paper investigates five of the most common algorithms and implements these algorithms.A comparison among them is made.The analyses indicate that gradient operator is more simple and effective,the LOG algorithm and Canny detector yield thinner edges.In practice,choosing which algorithm largely depends on the nature of the investigation problem.