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随着计算机网络和图像处理技术的快速发展,人们能够很容易篡改图像的内容而不留下任何痕迹,因此,数字图像的真实性受到了各国相关机构的广泛关注。数字图像取证技术作为信息安全技术的分支之一,是对数字图像的伪造、篡改和隐秘性进行分析、鉴别和认证的技术。本文简单介绍数字图像取证技术研究的基础和发展现状,并在深入研究当前模型的基础上,改进了基于光源位置、光学特性一致性的算法,并使用matlab进行编程,得到检测图像真伪应用软件。
With the rapid development of computer network and image processing technology, people can easily tamper with the image contents without leaving any traces. Therefore, the authenticity of digital images has drawn wide attention from relevant agencies in various countries. As one of the branches of information security technology, digital image forensics technology is a technology of analyzing, identifying and authenticating digital images forgery, tampering and secrecy. This article briefly introduces the basic and current situation of digital image forensics research. Based on the deep research of the current model, this paper improves the algorithm based on the consistency of light source position and optical properties, and uses matlab to program and verify the authenticity of application software .