基于深度学习的不可见图像隐写术
首发时间:2019-01-04
摘要:隐写术和隐写分析是信息安全领域中的一个重要分支——信息隐藏的主要内容,二者在对抗中不断发展进步。近年来已经有大量的工作将深度学习引用到了隐写分析中,性能已经超过了传统隐写分析算法。这表明,深度学习在信息隐藏领域有着很大的潜力。另外有一些工作实现了基于深度学习的隐写算法,能够自适应地将秘密信息嵌入到载体图像中,但它们在不可见性方面还存在着一些问题。本文针对这些问题提出了一种新的基于深度学习的隐写模型。该模型将一张灰度图嵌入到一张等尺寸的彩色图像中,并能够成功地恢复出秘密图像,且不可见性得到了明显提升。本文针对隐写任务的特点提出了一个新的复合损失函数,该函数能够加快模型的训练。实验表明,本文提出的模型在LFW和Pascal VOC12两个数据集上均有很好的表现。
关键词: 信息安全技术 图像隐写 卷积神经网络 复合损失函数
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Invisibile Image Steganography via Deep Learning
Abstract:Steganography and steganalysis are main content of information hiding, they always make constant progress in confrontation. There is large consent that measures based on deep learning have outperformed conventional approaches in steganalysis, which have shown that deep learning is very promising for the information hiding area. And in the last two years, there are also several works using deep learning to achieve the procedure of steganography. While these works still have problems in invisibility. We proposed a new steganography model based on deep learning. Our model can conceal a secret gray image into a color cover image, and can reveal the secret image out successfully. And the invisibility of our model was improved significantly. A mixed loss function is proposed for the steganography, which will spped up the training. Experiment results show that ISGAN can achieve start-of-art performance on LFW and Pascal VOC12 datasets.
Keywords: Information security technology Image steganography Convolutional neural networks Mixed loss function
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