Description: :数字水印技术在数字产品的版权保护中起着非常重要的作用。概括了数字水印技术的现状及其基本原理,并
分析了变换域数字水印算法的优势,详细阐述了DCT 水印嵌入和提取算法的原理和步骤。最后在Matlab 平台下对DCT 数
字水印算法进行了仿真,仿真结果证实了DCT 算法的强健性和鲁棒性。-: digital watermarking technology in the digital copyright protection products played a very important role. Summarized the digital watermarking technology and the status of the basic principles and transform domain analysis of digital watermarking algorithm advantages, elaborate on the DCT watermark embedding and extraction algorithm theory and steps. Finally in Matlab platform for DCT digital watermarking algorithm for the simulation, Simulation results confirmed the DCT are strong and robust. Platform: |
Size: 525312 |
Author:my name |
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Description: 一种基于DCT域盲数字水印嵌入程序，在DCT中频系数中嵌入水印，恢复時不用用到原始图像。-Based on DCT-domain blind digital watermark embedding process, in the intermediate frequency DCT coefficients to embed watermarks, when not used to restore the original image. Platform: |
Size: 128000 |
Author:晁文婷 |
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Description: 这个程序是基于DCT域的数字水印嵌入程序的提取程序，不需要原始图像，就可以从加水印的图像中提取水印图像-This procedure is based on the DCT domain of the digital watermark embedding process of the extraction procedure does not require the original image, you can add a watermark image from the extracted watermark image Platform: |
Size: 128000 |
Author:晁文婷 |
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Description: 利用DCT域进行扩频水印的嵌入,含实验图像，和各种经典的攻击方式。可选择嵌入强度和攻击强度。利用Matlab编写-DCT domain using spread-spectrum watermark embedding, with the experimental images, and various classical attacks. The option embedded in the strength and intensity of attacks. Prepared using Matlab Platform: |
Size: 115712 |
Author:张湛 |
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Description: 在DCT域，利用8*8分块DM方法，嵌入隐藏信息。可设置量化步长、选择各种经典的攻击方式和控制攻击强弱。返回误码率和峰值信噪比。利用Matlab编写。-In the DCT domain, the use of 8* 8 block DM methods, embedding hidden information. Quantization step size can be set to choose a variety of classic attacks and control the strength of the attack. Return to the bit error rate and peak signal to noise ratio. Prepared using Matlab. Platform: |
Size: 148480 |
Author:张湛 |
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Description: 基于DCT域的图像数字水印技术：
摘要：数字水印技术作为数字媒体版权保护的有效办法，近年来在国内外引起了人们极大的兴趣。作者采用了DCT离散余弦变换的算法，对图像这种多媒体数字作品进行了数字水印的嵌入和检测研究。并且使用了高效实用的编程工具MATLAB来介绍了一种DCT域的图像数字水印嵌入和提取的实例，并且在最后对嵌入水印的图像进行了攻击实验，验证了该算法的鲁棒性和不可见性。-Based on the DCT domain image watermarking techniques: Abstract: Digital watermarking of digital media technology as an effective means of copyright protection, in recent years both at home and abroad has aroused great interest. The author adopted the DCT discrete cosine transform algorithms, the image of this multi-media digital works for the digital watermark embedding and detection research. And the use of efficient MATLAB programming tools useful to introduce a DCT domain image watermarking embedding and extraction examples, and in the final of the embedded watermark image of the attack experiments verify the robustness of the algorithm and non- Visibility. Platform: |
Size: 533504 |
Author:绯村剑心 |
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Description: 一种基于DCT变换的数字水印算法的实现过程,水印为伪随机序列，包括嵌入和提取两个过程。其中textmark.m为攻击实验代码。-DCT-based Digital Watermarking Algorithm Transform realize the process, the watermark for the pseudo-random sequence, including both the process of embedding and extraction. Textmark.m experiment in which the attack code. Platform: |
Size: 2048 |
Author:陈日进 |
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Description: 在图像的dct域内嵌入数字水印，包括水印嵌入和提取程序。水印为一副图像。-In the image embedded in the DCT domain of digital watermarking, including the watermark embedding and extraction procedures. Watermark for an image. Platform: |
Size: 1024 |
Author:霞疙瘩228 |
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Description: VC实现水印的嵌入和提取的全套算法 DCT变化域嵌入、提取 Torus变换对水印处理-VC realize watermark embedding and extraction algorithm of the full set of changes in DCT domain embedding, watermark extraction Torus transform treatment Platform: |
Size: 760832 |
Author:fish |
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Description: DCT域数字水印源代码.水印嵌入，水印检测，攻击实验以测试鲁棒性，重要参数计算。希望对做数字水印的XDJM有所帮助。--DCT-domain digital watermarking source code. Watermark embedding, watermark detection, attack experiment to test the robustness, an important parameter calculation. Want to do digital watermarking XDJM help.-- Platform: |
Size: 1024 |
Author:摩罗逊 |
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Description: 自适应全尺度小波数字图像水印.09年5月份
在清华学报出版的。实现大容量的水印嵌入，对于各种攻击的鲁棒性。请大家共享-Full-scale wavelet adaptive digital image watermarking .09 years in May, published in the Journal of Tsinghua University. The realization of large-capacity watermark embedding, the robustness of a variety of attacks. Please share Platform: |
Size: 1668096 |
Author:单昊 |
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Description: 嵌入水印信息的matlab程序,先读入原图像，再进行dct变换,产生水印序列排序，嵌入水印，dct反变换，得到嵌入水印的图像-Matlab embedded watermark information, procedures, first read the original image and then dct transform, resulting in the watermark sequence to sort, watermark embedding, dct inverse transform, the watermark embedded image Platform: |
Size: 3072 |
Author:顾利雯 |
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Description: 在MATLAB里，基于dct域,实现在二维图像中嵌入数字水印 并提取。-In MATLAB, the dct-based domain, the realization of two-dimensional images in the digital watermark embedding and extraction. Platform: |
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Author:lizhenzhen |
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Description: Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection and authentication of multimedia data in a networked environment, since it makes possible to identify the author, owner, distributor or authorized consumer of a document.
A new watermarking technique to add a code to digital images is presented: the method operates in the frequency domain embedding a pseudo-random sequence of real numbers in a selected set of DCT coefficients. Watermark casting is performed by exploiting the masking characteristics of the Human Visual System, to ensure watermark invisibility. The embedded sequence is extracted without resorting to the original image, so that the proposed technique represents a major improvement to methods relying on the comparison between the watermarked and original images.
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Size: 98304 |
Author:omar |
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Description: 生成一个高斯水印后，对待嵌入水印的载体图像进行二维的DCT变换，然后嵌入水印-Generates a Gaussian watermark, the watermark embedded in the carrier to treat two-dimensional image of the DCT transform, and then embedding the watermark Platform: |
Size: 252928 |
Author:蓝媚 |
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Description: 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 Platform: |
Size: 2409472 |
Author:卢雪宁 |
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Description: 针对打印扫描对图像影响的特点, 选取在图像的DCT 域上嵌入水印信息。对DCT 变换后的系数按
照他们的位置进行了特殊的分类, 通过分类后每一类中正负号的数量来表达水印信息, 增强了算法的鲁棒性。
然后对水印的嵌入位置、鲁棒性和嵌入强度进行了研究-Impact on the image for print scanning feature, select the image on a DCT domain watermark embedding. The DCT transform coefficients according to their location for a special classification, through classification in each category after the number sign to express the watermark information, to enhance the robustness of the algorithm. Then the location of the watermark embedding, robustness and embedding strength studied Platform: |
Size: 52224 |
Author:韩天明 |
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