基于颜色与角点特征的图像垃圾邮件识别算法

垃圾邮件制造者将垃圾信息嵌入图像中，使基于文本内容的反垃圾邮件系统失效。对垃圾邮件图像的特点深入分析后，提出一种垃圾邮件图像识别算法。垃圾邮件图像多为计算机合成图像，其颜色不如自然图像丰富，且因含有大量文字导致图像中角点角度值分布呈现出一定的规律性。针对此问题选用颜色和角点特征并结合支持向量机分类算法来识别垃圾邮件图像。实验结果表明，该算法对真实垃圾邮件图像的识别精确率超过98％。

Image Spam Identifying Algorithm Based on Color and Corner Feature

Spammers embed spam message into images and failed many text-based anti-spam systems.This paper proposes an effective method to discriminate the spam images by analyzing the features of image.Most of spam images are generated by computer,which are not as rich in colors as nature photos.Besides,as contained many texts,the images had certain regularity in corner angle distribution.The algorithm extracts some features of color and corner of image,and identifies spam image by a SVM classifier.Experimental resul...