关于对图像哈希算法的研究与应用  

Research and Application of the Image Hash Algorithm

作　　者：姚永明[1] 杨纯[1] 吴凌燕[1] 沈烨[1] 

机构地区：[1]南京邮电大学通达学院,江苏扬州225200

出　　处：《西安文理学院学报（自然科学版）》2016年第5期30-33,共4页Journal of Xi’an University(Natural Science Edition)

基　　金：2015年江苏省大学生科技创新训练计划项目(CX66615011)

摘　　要：传统的基于文本的检索方式无法精确地搜索图片,因此基于图像内容的检索技术应运而生.它利用图像哈希算法提取图像特征,通过量化压缩等方法产生一个标明图像指纹的哈希序列,对比哈希序列即可判定两张图像的相似度.主要从图像哈希算法的定义、原理、特点、应用等方面进行研究,并着重介绍和对比a Hash算法及p Hash算法.The traditional text based retrieval method can not accurately search the image content based retrieval technology came into being. It uses the image the image, so Hashing algo- rithm to extract image features, and a marked image fingerprint of the Hash sequence is pro- duced by using of the method of quantization and compression, and the similarity of two images can be determined by compared to the Hash sequence. In this paper, the definition, princi- ples, characteristics, applications and other aspects of the image Hashing algorithms are stud- ied, and the aHash algorithm and the pHash algorithm are mainly introduced and compared.

关 键 词：均值哈希算法 感知哈希算法 哈希算法 图片相似搜索 

分 类 号：TN919.81[电子电信—通信与信息系统]