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彩色图像的篡改检测及自恢复算法赵春晖,孙建军,朱海峰(哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001)摘要:数字水印是图像认证的有效手段之一.利用小波变换提出一种计算简单的彩色图像水印算法,将一个图像的主要内容嵌入该图像自身之中,用均值量化的方法在亮度信号中嵌入水印,实现篡改检测和定位篡改区域;用多余的色度空间嵌入亮度信号和色度信号,用于恢复被篡改的图像内容.该算法可以获取较高的峰值信噪比,具有很好的鲁棒性.实验结果表明,该算法对删除、替换等恶意图像篡改具有良好的检测、定位和自修复能
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research on authentication watermarking technology. Here a watermarking scheme for color image authentication is proposed, which operates in the wavelet domain.
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主要研究了彩色图像数字水印算法,在DCT域进行了水印的自适应嵌入和提取,并用Matlab进行了仿真实验,测试算法的性能-The main color image watermarking algorithm in the DCT domain adaptive watermark embedding and extraction, and with the Matlab simulation experiment to test the performance of algorithm
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基于matlab小波工具箱的彩色数字图象水印技术。-Matlab wavelet toolbox based on the color digital image watermarking technology.
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关于数字水印的matlab源代码,将彩色图像的rgb分量提取出,分别嵌入水印-About digital watermarking matlab source code, the rgb color image to be extracted components, respectively, embedded watermark
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color image watermarking using DCT and DWT
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基于DCT的彩色图像数字水印算法,作者:QQ 64134703 ,电子毕业设计,欢迎咨询-DCT based color image watermarking algorithm, the authors: QQ 64134703, e-graduate design, please consult
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基于小波域SVD的彩色图像自适应水印方案,作者:QQ 64134703 ,电子毕业设计,欢迎咨询
-Wavelet domain SVD-based color image adaptive watermarking scheme, the author: QQ 64134703, e-graduate design, please consult
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彩色数字水印的程序,实现在彩色图像中通过DCT变换来嵌入水印信息-Color digital watermarking process to achieve the color image by DCT transform to embed watermarks
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color image watermarking using quaternion foureir transform
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color image watermarking using singular value decomposition
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matlab实现的小波变换彩色图像水印嵌入和提取程序-Matlab wavelet transform color image watermarking embedding and extracting process
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水印嵌入,基于小波变换的彩色图像水印嵌入和提取-Watermarking embedding, based on wavelet transform of color image watermarking embedding and extracting, tested through
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该程序的主要功能是进行一维信号或二维信号的数据进行重新编码,以减少数据冗余,对于数字水印彩色图像的预处理具有较好的帮助。-The program s main function is to re-encode the one-dimensional signals or two- dimensional signal data to reduce data redundancy , and has a good help for digital watermarking of color ima
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用matlab实现了超复数傅里叶变换;
实现了量化索引算法;
实现了基于傅里叶变换和量化索引的彩色图像数字水印的嵌入以及提取算法;-Using matlab the hypercomplex Fourier Transform quantization index algorithm realized based on the Fourier transform and quantization index color image watermarking embedding and
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本程序为抗JPEG压缩的半脆弱性彩色图像数字水印,主要原理为DCT转换和DCT系数比较法,内含5中攻击仿真测试以及GUI界面,测试环境为MATLAB2009a,系本人2013年本科毕业设计-The procedures for the anti-JPEG compression semi-fragile color image watermarking, the main principle is the DCT transform and DCT coefficients comparativ
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基于HVS的DWT彩色图像数字水印的嵌入、提取,Matlab实现-Matlab implementation of HVS and DWT-based color image watermarking embedding and extraction
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空间域基于DC分量的盲彩色数字水印,根据直流系数的产生原理和分布特征,在空间域中嵌入水印。-A blind color image watermarking based on DC component in the spatial domain.By using the generating principle and distribution feature of the DC coefficient,the watermarking is inserted into the spatial
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【转】针对彩色载体图像,提出了一种彩色图像超复数频域的水印算法。它通过对彩色载体图像进行快速超复数傅氏变换,在超复数频域选择合适频段嵌入水印,并且修改其对称系数的值,保证了嵌入水印图像仍然可以用彩色图像的红、绿、蓝三色进行传输。分析表明提出的方法通过超复数傅氏逆变换,可以把水印带来的误差扩散到整幅图像,并且是分散到红、绿、蓝三色的各个分量上,从而实现数字水印的不易感知性和安全性的良好结合。本算法还提出了对水印数据进行“交叉冗余嵌入”的规则,以进一步提高数字水印的鲁棒性。最后给出了实验结果,验证了
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基于视觉密码的彩色图像水印。认证信息由标记的密码、水印和密码生成。-Visual cryptography based color image watermarking. Authentication information generated by the tag code, watermark and password.
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