关于检测JPEG图像的二次压缩算法研究  

Research on secondary compression algorithm for detecting JPEG images

作　　者：刘婷[1] 梁文龙 Liu Ting;Liang Wenlong(Hunan Vocational College of Information Technology,Changsha 410200,China)

机构地区：[1]湖南信息职业技术学院,湖南长沙410200

出　　处：《无线互联科技》2022年第21期141-143,共3页Wireless Internet Technology

摘　　要：随着物联网技术的发展,图像编辑软件以及图像获取设备被广泛应用和不断更新,即使不具备数字图像专业知识的人也可以轻易地篡改图像并且难以用肉眼识别。文章研究一种方法能检测使用相同量化表压缩的二次图片,其中算法主要是基于用相同量化表经过一次又一次的压缩的过程以及不同JPEG系数的数量等来判断是否进行压缩操作。通过实验方法的结果比较,确认方法的有效性,方法可以应用于图像及视频压缩,数字多媒体通信等领域,具有较大的研究价值。With the development of Internet of Things technology, image editing software and image acquisition equipment are widely used and constantly updated. Even people without professional knowledge of digital images can easily tamper with images and are difficult to identify with the naked eye. This paper mainly studies a method that can Detecting secondary pictures compressed using the same quantization table, the algorithm is mainly based on the process of repeatedly compressing with the same quantization table and the number of different JPEG coefficients to determine whether to perform a compression operation. This paper confirms the effectiveness of the method by comparing the results of the experimental methods. The method in this paper can be applied to image and video compression, digital multimedia communication and other fields, and has great research value.

关 键 词：JPEG二次压缩 DCT系数分析 一次压缩 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]