| 基于离散小波变换的数字图像隐藏技术 |
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| 引用本文： | 张永红.基于离散小波变换的数字图像隐藏技术[J].河南科学,2012,30(7):890-894. |
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| 作者姓名： | 张永红 |
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| 作者单位： | 渭南师范学院数学与信息科学学院,陕西渭南,714000 |
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| 基金项目： | 陕西省科技计划项目，陕西省教育厅科学研究项目，渭南师范学院基金项目，渭南市科技计划项目 |
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| 摘 要： | 基于离散小波变换(DWT)和S盒算法给出了一种数字图像加密算法.首先分别对秘密图像和公开图像应用离散余弦变换和离散小波变换,并对秘密图像的离散余弦变换系数进行S盒变换,进而潜入到公开图像的小波系数中,利用逆变换得到结果图像.实验证明该方法可行、效果好、隐藏信息量大,隐藏算法还能抵抗许多攻击,并具有一定的安全性和鲁棒性.
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| 关 键 词： | 信息隐藏 离散小波变换 S盒 |
The Technology of Image Hiding Based on Discrete Wavelet Transform |
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| Zhang Yonghong.The Technology of Image Hiding Based on Discrete Wavelet Transform[J].Henan Science,2012,30(7):890-894. |
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| Authors: | Zhang Yonghong |
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| Affiliation: | Zhang Yonghong(College of Mathematics and Infomation Science,Weinan Normal University,Weinan 714000,Shaanxi China) |
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| Abstract: | This paper proposes a digital image hiding algorithm based on discrete wavelet transformation and S-box.Blending between DCT coefficients of the secret image and DWT coefficients of the public image can obtain the new image with the secret image profile.And due to the block effect and mosquito noise of DCT,so we can hide DCT coefficients of the secret image into DWT field of the public image.Examples show that the scheme is effective.The algorithm has some robustness and can resist many attacks. |
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| Keywords: | information hiding discrete wavelet transform S-box |
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