Description: 是关于视频数字水印的一个程序，可以实行视频数字水印的嵌入和检测。-on video digital watermarking a procedure that allows the video digital watermark embedding and testing. Platform: |
Size: 104394 |
Author:小徐 |
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Description: 数字水印的攻击方法和对策浅析电子书胡启明(武汉理工大学信息工程学院)摘要：在保护数字图像、视频、音频等数字媒体的知识产权方面，数字水印技术是一种很有前景的方法。由于作为版权标记的数字水印正面临着越来越多的攻击，对数字水印的稳健性要求也越来越高。笔者对4类不同原理的数字水印攻击：简单水印攻击、同步水印攻击 削去水印攻击和IBM水印攻击进行了详细论述，并给出了相应的解决对策。-digital watermarking method of the attacks and countermeasures of e-books Huo (Wuhan Polytechnic University, the Information Engineering Institute) Abstract : the protection of digital images, video, audio and other digital media in regard to intellectual property rights, Digital watermarking technology is a promising approach. Due to copyright labeled as digital watermarking is facing a growing number of attacks, Digital watermarking to the stability requirements have become more sophisticated. The author of four different types of digital watermarking principle of attack : simple watermark attack Synchronous watermark attack defrocked watermark attacks and IBM watermark attacks discussed in detail. and the corresponding solutions. Platform: |
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Author:ghostsx |
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Description: 数字水印技术模型表示及其算法研究辛海涛(哈尔滨商业大学计算机应用与工程学院，黑龙江哈尔滨15(1028)摘要：随着多媒体技术和网络技术的广泛应用，对图像、音频、视频等多媒体内容的保护成为迫切的问题“数字水印作为版权保护的重要手段和一种新型的信息隐藏方法，近几年得到了迅猛发展”．对当前数字水印分类，典型原理和算法，水印的提取、检测，数字水印以及相关技术做了论述，并对未来的研究方向作出展望．-digital watermarking technology model and algorithm research said Xin Hai - (commercial Harbin University of Engineering and Computer Application Hospitals, Harbin, Heilongjiang, 15 (1028) Abstract : With the multimedia and network technology to the broad application right images, audio, Video and other multimedia content protection has become an urgent issue "digital watermarking, as copyright protection, and an important means of a novel Information Hiding, in the past few years has been the rapid development. " Digital watermarking on the current classification, a typical principles and algorithms The watermark extraction, detection, digital watermarking and related techniques are discussed and future research directions prospects. Platform: |
Size: 281054 |
Author:ghostsx |
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Description: Visual+C小波变换技术与工程实践
全书共11章，内容包括:小波变换基础、小波与数字信号处理、小波变换与语音处理、图像的小波变换、小波变换与数字图像处理、图像编解码应用、网络图像渐进传输实用案例、小波变换在数字视频处理中的应用、小波分形的应用、数字水印的应用和网络视频回放应用案例。-Visual+ C wavelet transform technology and engineering practice of a total of 11 book chapters, include: the basis of wavelet transform, Wavelet and digital signal processing, wavelet transform and voice processing, image wavelet transform, wavelet transform and digital image processing, image codec applications, progressive image transmission networks practical cases, wavelet transform in digital video processing applications, wavelet fractal applications, digital watermarking applications and network video playback application cases. Platform: |
Size: 15980544 |
Author:jingjing |
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Description: From Weak to Strong Watermarking-The informal goal of a watermarking scheme is to “mark” a digital object, such as a
picture
or video, in such a way that it is difficult for an adversary to remove the mark without
destroying the
content of the object. Although there has been considerable work proposing and breaking
watermarking
schemes, there has been little attention given to the formal security goals of such a
scheme. In this work,
we provide a new complexity-theoretic definition of security for watermarking schemes. We
describe
some shortcomings of previous attempts at defining watermarking security, and show that
security under
our definition also implies security under previous definitions. We also propose two weaker
security
conditions that seem to capture the security goals of practice-oriented work on
watermarking and show
how schemes satisfying these weaker goals can be strengthened to satisfy our definition. Platform: |
Size: 313344 |
Author:xiaowang |
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Description: 一篇关于鲁棒数字水印的文章，基于空域的视频数字水印，视频尺寸是标清，可应用于电视信号的传输-An article on robust digital watermarking, digital watermarking video based on spatial, video size SD can be applied to the transmission of television signals Platform: |
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Author:柳燕 |
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Description: 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 watermark algorithm based on H．264 low bit—rate video stream was pro—
posed in this paper，copyright protection and content authentication Can be achieved jointly by embedding the robust waterraark
an d fragile watermark spectively during the process of interior prediction an d motion vector prediction which are
characteristic for H．264 standard．Through introducing the quan tization factor of H．264 in the embedding and prediction
mod e choice，the proposed scheme Can strengthen the watermarking resistance to video recoding and strike a good rate—
distortion balan ce for the waterm ark of lower bit—rate video st／ ea／n．which relieve bit—rates lossness from the waterm arking
embedding．Experimental results also demonstrate that this scheme iS very computational efi cient during watermark—
ing embedding an d extraction． Platform: |
Size: 384000 |
Author:阿国 |
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Description: Watermarking embeds information into a digital signal like
audio, image, or video. Reversible image watermarking can restore the
original image without any distortion after the hidden data is extracted.
In this paper, we present a novel reversible watermarking scheme using
an interpolation technique, which can embed a large amount of covert
data into images with imperceptible modification. Different from previous
watermarking schemes, we utilize the interpolation-error, the difference
between interpolation value and corresponding pixel value Platform: |
Size: 2541568 |
Author:isclor |
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Description: Watermarking embeds information into a digital signal like
audio, image, or video. Reversible image watermarking can restore the
original image without any distortion after the hidden data is extracted.
In this paper, we present a novel reversible watermarking scheme using
an interpolation technique, which can embed a large amount of covert
data into images with imperceptible modification. Different from previous
watermarking schemes, we utilize the interpolation-error, the difference
between interpolation value and corresponding pixel value Platform: |
Size: 225280 |
Author:isclor |
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Description: 基于小波变换的图象_视频压缩编码及其数字水印嵌入方法的研究-Wavelet transform based image _ video compression and watermarking method research Platform: |
Size: 7068672 |
Author: |
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Description: 本文提出了一种视频多媒体文件的水印嵌入算法，具有重要的学术参考价值！-This paper presents a video multimedia document watermarking algorithm, has important academic value! Platform: |
Size: 164864 |
Author: |
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Description: 小波变换域图像水印算法是一种对图像多尺度的空间频率分解[13]，能更好地与人类视觉系统（HVS Human Visual System）相匹配。由于小波变换具有良好的时频局部性和多分辨率表示的特点，而且，当前最新的图像压缩标准——JPEG2000 和视频的MPEG-7 压缩标准都采用了小波变换，-The wavelet transform domain image watermarking algorithm is a multi-scale image of the spatial frequency decomposition [13], to better match the human visual system (HVS Human Visual System). Because the wavelet transform has good frequency characteristics of the locality and multiresolution representation, and, the latest image compression standard- JPEG2000 and video MPEG-7 compression standards have adopted the wavelet transform, Platform: |
Size: 1992704 |
Author:QYH |
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Description: digital watermarking is a process by which a user-specified
signal is hidden or embedded into another signal , for
example digital content such as electronic documents, images,
sounds and video [2]. The use of digital video applications
such as video-conferencing, digital television, digital cinema,
distance learning, videophone, and video-on-demand has
grown very rapidly over the last few years. Today it is much
easier for the digital data owners to transfer multimedia data
over the internet, and hence the data could be perfectly
duplicated and rapidly redistributed on a large scale. Thus, the
importance of copyright protection for multimedia data has
become more critical. Digital watermarking is an effective way
to protect the copyright of multimedia data even after its
transmission there is urgent demand for techniques to protect
the original digital data and to prevent unauthorized
duplication or tampering. Platform: |
Size: 399360 |
Author:jumana_phdstudent |
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Description: 基于JPEG、MPEG标准的压缩域数字水印系统不仅节省了大量的完全解码和重新编码过程，而且在数字电视广播及VOD(Video on Demand)中有很大的实用价值。-Based on JPEG, MPEG compression standard digital watermarking system not only saves a lot of full decoding and re-encoding process, but also in digital television broadcasting and VOD (Video on Demand) has great practical value. Platform: |
Size: 90112 |
Author:zhang |
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Description: In this paper, we propose a new method that use
side view video pre-processing with DWT-SVD based water-marking scheme. This processing switch the video references
of the frames with dimensions equivalent of the number of
frames like width and the same height than the original video.
The DWT-SVD watermarking is applied in. Platform: |
Size: 137216 |
Author:vijay |
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Description: 视频加水印。上传一段视频文件，需要水印图片，为视频加上此水印图片(Video watermarking. Upload a video file, need watermark image, add watermark image for the video) Platform: |
Size: 12041216 |
Author:葛昊
|
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Search - video watermarking