摘要
某些企业迫切需要一种能够自动检测JPEG图片在存储、传输过程中是否有被篡改过的水印技术,同时需保证"原图"不受水印的影响。但因JPEG压缩为有损压缩,压缩和解压缩过程会引起图片信息发生变化,要同时保证检测的零误检率和极低的漏检率是非常困难的。文中提出了一种基于图片内容的对JPEG压缩完全稳定的图像防篡改方法,包括两个部分:加水印部分和检测图片是否篡改并去除水印部分。本算法能做到完全无误检,同时保证对篡改保持极高的检出率,而且丝毫不影响"原图",完全满足企业的上述需求。本算法应用于某家企业的实际项目中。
Some companies urgently need a kind of watermarking technology which can automatically detect whether the picture has been tampered in the process of storage or transmission,while ensuring that the original image is not affected by the added watermark.As JPEG compression is lossy compression and image information will be changed during the process of compression and decompression,it is difficult ito ensure that false rejection rate is 0%with very low false acceptance rate.This paper presents an absolutely robust to JPEG compressing technique of image tamper-proof,which is divided into two parts:the watermark adding and the testing for whether the picture is tampered and removing the watermark section.The algorithm can absolutely guarantee against error checking while ensuring a high detection rate of tampering,and does not affect the original image,which fully meets the above needs of companies.This algorithm is applied to a practically project of some company.
作者
易焕银
王贵恩
YI Huan-yin;WANG Gui-en(Guangdong Communication Polytechnic,Guangzhou 510800,China)
出处
《广东交通职业技术学院学报》
2018年第1期38-43,共6页
Journal of Guangdong Communication Polytechnic
关键词
JPEG压缩
数字水印
篡改检测
零误检率
低漏检率
JPEG compression
digital watermarking
tamper detection
0%false rejection rate
low false acceptance rate
作者简介
易焕银(1987-),男,助教,硕士研究方向:图像处理、机器视觉。
