数字图像边缘检测及提取算法研究与分析(2)

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数字图像边缘检测及提取算法研究与分析

数学计算机科学学院

摘 要：边缘检测在数字图像处理、计算机视觉中有着重要的应用。本文首先介绍了图像边缘及边缘检测的一些基本概念，然后对数字图像处理中Roberts算子，Sobel算子，LoG算子，Canny算子四种典型的边缘检测算法进行理论分析，并通过VC++编程对各种算法进行实现，通过比较得出了各自的优缺点和适用范围。这对进一步学习和寻找更好的数字图像边缘检测方法具有一定的指导意义。 关键词：边缘检测；Roberts算子；Sobel算子；LoG算子；Canny算子

Study and Analysis of the Algorithm of Edge Detection and

Extraction of Digital Image

Guo Fanghua，College of Mathematics and Computer Science

Abstract: Edge detection has a very important application in image processing and computer vision. This paper first describes some basic concepts of image edge and edge detection, and then introduced and analyzed four typical methods of edge detection in digital image processing such as Sobel, Roberts, LoG and Canny, at the same time, compares each method and indicates the advantages and disadvantages of each method through VC++ experience。This contributes to further learning and searching the better algorithms for digital image edge detection.

Key words: edge detection; roberts operator; sobel operator; log operator; canny operator

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