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B2193AED
- 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
嵌入水印 (2)
- 此系统可以根据量化系数的选择不同而使水印信号的脆弱程度不同。由实验结果显示假如Q=1,当图像受到高斯噪声的攻击时,已经不能通过系统的认证。-system can quantify the different coefficients so fragile watermark signals to different degrees. From the experimental results show that if the Q = 1, when images by Gaussian nois
work
- 基于空域的脆弱水印算法,该方法最具代表性的是最低有效位(LSB)法,也就是文件中的方法,两个文件分别给出了水印的生成和检测。-Airspace based on fragile watermarking algorithm, the method is the most representative of the least significant bit (LSB) method, which is the method of the document, two documents were
ComparativeEvaluationofDigitalFragileImage
- 脆弱性数字水印能为多媒体内容完整性认证和篡改检测提供有效的解决方案。该文对用于图像认证的脆弱性数字水印技术的研究 现状、一般原理、基本特征、典型算法进行了综述-The vulnerability of digital watermark for the integrity of multimedia content authentication and tamper detection to provide an effective solution. The image authentic
DWT
- 基于小波DWT域的脆弱水印,可以检测图像是否发生篡改-DWT-based wavelet domain fragile watermarking, can detect whether there has been tampering with images
lsb
- 基于空域的脆弱水印,可以有效检测出图像发生篡改的区域-Airspace based on fragile watermarking can effectively detect the occurrence of tampering with the image of the region
Semi_fragilewatermarking
- 内容认证半脆弱水印算法的研究与实现,本程序实现图像的半脆弱水印,是基于DCT的算法,特别适合研究半脆弱水印的同志-Content authentication semi-fragile watermarking algorithm for Research and Implementation of, the procedures for the realization of the semi-fragile watermarking images is based on the DCT alg
Watermark
- 脆弱数字图像水印,使用LSB算法实现的脆弱数字图像水印-Digital Watermarking
nc
- .设计对水印系统进行公正的比较和评价方法。在这方面己经有部分学者作了一些初步的研究,但缺乏普遍性和原理性,对水印系统的脆弱之处仍无法进行全面的测试与衡量。-. Watermark system designed just for comparison and evaluation. In this regard, some scholars have been some preliminary research, but the lack of universality and the prin
embed
- 自己写的基于DCT和Logistic映射的脆弱水印算法嵌入算法-Write your own based on the DCT and the Logistic map fragile watermarking embedding algorithm
pickup
- 脆弱水印提取算法,与embed.rar中的嵌入算法相对应,可以提供较好的篡改定位-Fragile watermark extraction algorithm, and embed.rar correspond to the embedding algorithm can provide better tamper positioning
ResearchingonWatermarkingAlgorithmofImageResistanc
- 在对图像数字水印和图像压缩技术进行深入研究的同时,提 出了在图像压缩域内同时嵌入一个鲁棒水印和一个脆弱水印的双水 印方案-esides researching on the image digital watermarking and image compression technology in—depth,the thesis has put forward a method to embed a robust and af ragile watermark in the
sim-watermark
- 脆弱及半脆弱水印论文10篇,包括用于图像认证的水印,文本水印,音频水印的论文-Weak and semi-fragile watermarking papers 10, including those for image authentication watermark, text watermarking, audio watermarking papers
Logistic
- 基于Logistic混沌映射的DCT域脆弱数字水印算法-Logistic chaotic map based on fragile digital watermarking algorithm for DCT domain
1
- 本文提出一种基于H.264低比特率视频流的半脆弱盲水印方法,通过在H.264特有的的帧内预 测和运动向量预测中分别嵌入鲁棒水印和脆弱水印,达到版权保护和内容完整性认证的双重目的.通过在嵌入强 度和预测模式选择的拉格朗日乘子中引入H.264量化因子,增强了水印对重量化编码的抵抗力,取得更好的率 失真平衡,减小水印嵌入对视频流比特率的影响.该算法可以实现水印的快速嵌入提取,满足视频实时处理的要 求,实验结果证明了该算法的有效性.-A novel semi—fragile blind
LSBtest
- 一个基于LSB嵌入算法的脆弱水印的测试程序。工程分为两部分,一个嵌入器和一个检测器。-a fragile watermark test program based on LSB embedding algorithm. Project is divided into two parts, an embedded device and a detector.
Fragile-watermarking-based-on-DWT
- 基于DWT域的脆弱水印,上数字图像处理课的大作业-Fragile watermarking based on DWT, digital image processing course
Fragile-watermarking-based-on-space
- 基于空域的脆弱水印,,上数字图像处理课的大作业 -Fragile watermarking based on airspace,homework of digital image processing
FragileWatermarking_SourceCode
- 对图像进行脆弱水印检测,识别图片的更改部位(test fragile water marking for a pictue)
Watermark
- 基于LSB的脆弱数字水印实现,VC++实现,使用OPENCV(Implementation of fragile digital watermarking based on LSB)