Description: 在现在信息的安全性得到了重视，水印技术在信息隐藏中是一种新的方法。这篇文章能够帮助我们理解水印技术。-now information security has been the focus of attention, watermark technology in the Information Hiding is a new approach. This article can help us to understand watermarking technology. Platform: |
Size: 535329 |
Author:王清华 |
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Description: 数字水印常用变换如dct变换小波变换离散傅立叶变换等源代码-transform digital watermark used as Extra transform wavelet transform discrete Fourier transform, and other source code Platform: |
Size: 26953 |
Author:王袍 |
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Description: 在现在信息的安全性得到了重视，水印技术在信息隐藏中是一种新的方法。这篇文章能够帮助我们理解水印技术。-now information security has been the focus of attention, watermark technology in the Information Hiding is a new approach. This article can help us to understand watermarking technology. Platform: |
Size: 535552 |
Author:王清华 |
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Description: 基于离散小波变换的数字水印技术
利用matlab编写-based on the discrete wavelet transform digital watermarking technology used to prepare Matlab Platform: |
Size: 165888 |
Author:bob |
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Description: 音频数字水印技术的C语言实现，代码完全，供设计参考-audio digital watermarking technology to the C language, code entirely for the design reference Platform: |
Size: 19456 |
Author:王刚 |
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Description: 将相同尺寸的灰度图象和2值图像进行2级小波分解，在前者的细节子带嵌入分解后的2值图像的数字水印程序-of the same size and gray-scale image of two binary images for two wavelet decomposition, details of the former subband decomposition embedded value after the two images of digital watermarking procedure Platform: |
Size: 52224 |
Author:li yue |
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Description: 本文构造一种扩频和量化混合模型,并提出了一种图像多小波变换域内基于扩频和量化的混合数字水印方案,通过理论分析给出了扩频长度、信道容量、检测错误率等参数间的关系,实验结果表明算法实现了水印鲁棒性前提下的水印容量最大化的目的.-this paper, a spread spectrum and quantitative hybrid model, and proposes a number of images based on wavelet transform domain spread spectrum and quantification of mixed digital watermarking programs, Through theoretical analysis of the spread spectrum given length, channel capacity, the error rate testing parameters such as the relationship between them, Experimental results show that the watermark algorithm robust watermark under the premise of the purpose of maximizing capacity. Platform: |
Size: 468992 |
Author:阳光 |
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Description: 一种新的图像脆弱水印算法李亚琴 ，孙星明 ，杨恒伏(1．苏州市职业大学，江苏苏州215104；2．湖南大学计算机与通信学院，湖南长沙410082)摘要：提出一种基于小波变换和QR分解的图像脆弱水即方法。嵌入水印时，首先对原始图像进行三级小波分解，然后提取第三级低频子带的边缘特征，同时对此边缘特征和第三级垂直高频子带进行QR分解，用边缘特征的一部分分解结果替换垂直高频子带分解结果的相应部位来嵌入水即，最后进行小波逆变换得到嵌入水印的图像。图像认证时，首先对观测图像进行三级小波分解，第三级垂直高频子带与低频子带边缘特征的QR分解结果进行比较，就可以准确认证图像是否经过攻击，并可以精确定位受攻击的部位。实验结果表明此方法的有效性和可行性。-a new image fragile watermarking algorithm Ya-Qin Li, Sun Xingming, Heng Yang Fu (1. Suzhou City Vocational University, Suzhou City in Jiangsu 215104; 2. Hunan University College of Computer and Communication, Changsha, Hunan 410082) Abstract : A wavelet transform based on QR decomposition and the image that the fragile water ways. Embedded watermark, the first of three original image wavelet decomposition, and then extract the third level sub-band edge features, Meanwhile this edge features and third-vertical high-frequency band for QR decomposition, Edge feature with the results of the replacement part of decomposition vertical high-frequency subband results to the corresponding parts of the water that is embedded. Finally inverse wavelet transform embedded watermark images. Image Authen Platform: |
Size: 231424 |
Author:ghostsx |
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Description: 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、定位和自修复能力．-color image tamper detection and self-recovery algorithm Zhao Chunhui, Sun Jianjun, Zhu Haifeng (Harbin Engineering University, Information and Communication Engineering Institute, Harbin, Heilongjiang 150001) Abstract : digital watermark image authentication is one of the effective means. Using wavelet transform A simple calculation of the color image watermarking algorithm, an image of the main elements embedded in the image itself, and use of quantitative methods mean the luminance signal embedded watermark, achieve tamper detection and localization tampering with the region; use of surplus space embedded color luminance signals and chrominance signals, for the restoration of tampering with the image content. The algorithm can generate a higher signal-to-noise ratio of the peak value, h Platform: |
Size: 237568 |
Author:ghostsx |
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Description: 随着图像技术的快速发展,当信息内容涉及到政治、军事、商业、法庭举证等重要数据时,其真实性和完整性必
须得以确认。提出一种结合Zernike 矩的半脆弱水印算法,利用图像小波变换低频子带的Zernike 矩幅值的半脆弱特性区
分恶意攻击和偶然攻击,提高了水印的安全性,并能准确地定位出篡改区域。-With the rapid development of the image techniques , If the image contains important data , such as politics ,
military , commerce and evidence , the authenticity and integrality of the image must be validated. In this paper , a semi2f ragil2
eim watermarking algorithm using Zernike moment s is proposed , it can distinguish malicious modification f rom incidental
modification according to semi2f ragile characteristics of zernike moment s of the low f requency subband in the integer wavelet
t ransform domain of an image , improving watermark security , and locating the tamper areas well and t ruly. Platform: |
Size: 343040 |
Author:ll |
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Description: 基于小波变换的自同步音频水印算法，研究论文，非常不错哦。-Self-synchronization based on wavelet transform audio watermarking, research papers, very impressive. Platform: |
Size: 258048 |
Author:黄大海 |
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Description: 对水印图像进行置乱，然后嵌入到载体图像小波域中的细节子带中-the watermark image is Scrambled, and then embedded into the details of wavelet sub-band domain Platform: |
Size: 872448 |
Author:yhtppp |
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Description: 本代码是一种基于小波的零水印算法，算法在小波域进行水印的嵌入，并进行了鲁棒性测试-zero-watermarking based on wavelet -watermarking based on wavelet Platform: |
Size: 70656 |
Author:张晓婷 |
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Description: 这是一个用小波变换实现的数字水印的源代码，希望对大家有帮助。-This is a digital watermarking using wavelet transform source code, we hope to help. Platform: |
Size: 2048 |
Author:车车 |
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Search - wavelet watermarking