边缘是图像的基本特征,并且蕴含了丰富的内在信息,是图像识别中抽取图像特征的重要属性。为了分析研究沥青混合料中集料颗粒特征,介绍了几种经典边缘检测算子,对沥青混合料数字图像进行处理。最后以VC.NET为平台对图像进行边缘检测,分析这几种经典算子的优劣,找出适合沥青混合料数字图像边缘检测的最佳算子。%Edge is the basic characteristics of the image,which contains a wealth of internal information.It is the important attribute to extract image features of image recognition.For the analysis of aggregate characteristics in asphalt mixture,the paper discusses several kinds of classical image edge detection operators and processes the asphalt mixture digital image.Finally,it achieves several edge detection operators on VC.NET,and found the best image edge detection operators for the edge detection of asphalt mixture digital image.
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