Description: 向音频信号加入伪随机序列的的音频水印源码-to the audio signal to the pseudo-random sequence of audio watermarking FOSS Platform: |
Size: 874 |
Author:李若 |
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Description: 向音频信号加入伪随机序列的的音频水印源码-to the audio signal to the pseudo-random sequence of audio watermarking FOSS Platform: |
Size: 1024 |
Author:李若 |
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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: 产生PN序列，及产生伪随机序列,可用于数字水印扩频等-Generated PN sequence, and generate pseudo-random sequence, spread spectrum can be used for digital watermarking, etc. Platform: |
Size: 78848 |
Author:zhengyun |
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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.
Platform: |
Size: 98304 |
Author:omar |
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Description: 一种基于DCT变换域的数字水印技术，其中用到了伪随机数生气器技术随机产生水印信号-DCT transform domain based on digital watermarking technology, which uses a pseudo-random number of randomly generated angry watermark signal device Platform: |
Size: 305152 |
Author:lifeng |
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Description: 未经任何变化的原始图像上分块嵌入水印信息，且用伪随机序列作为水印，空域图像水印。-Without any change in the original image block embedded watermark information, pseudo-random sequence as a watermark, the airspace image watermark. Platform: |
Size: 888832 |
Author:欧啦啦 |
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Description: 空域水印图像，没采用分块技术，，水印为伪随机序列，算是图像水印初学者该会的第一个程序，在此基础上进一步深入学习。-Airspace watermark image, not using the block technique, the watermark is a pseudo-random sequence can be regarded as image watermarking beginners the first program, on the basis of further study. Platform: |
Size: 887808 |
Author:欧啦啦 |
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Description: 提出一种新颖的基于HVS (Human Visual System) 和DCT (Discrete Cosine Transform)的数字水印算法。为保证视觉透明性和鲁棒性, 通过将二值水印图像映射为标准正态分布的伪
随机实数序列, 并利用HVS 的特性, 将水印嵌入宿主图像中频部分。-Propose a novel digital watermarking algorithm based on the HVS (Human Visual System) and DCT (Discrete Cosine Transform). To ensure that the visual transparency and robustness, the binary watermark image map for the standard normal pseudo-random sequence of real numbers, and take advantage of the characteristics of the HVS, the watermark is embedded in the IF portion of the host image. Platform: |
Size: 128000 |
Author:张化 |
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Description: 基于dct的伪随机序列的数字图像水印，算法较为简单，鲁棒性一般，不能很好地抵御噪声攻击-Dct pseudo-random sequence-based digital image watermarking algorithm is relatively simple and general robustness against noise attack can not Platform: |
Size: 1024 |
Author:qiqing |
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Description: LSB 方式信息隐藏算法鲁棒性较差，为加大水印攻击难度，可采用一段伪随机序列来控制水印嵌入位置。-LSB mode information hiding algorithm less robust, in order to increase the difficulty of watermarking attack, a pseudo-random sequence can be used to control the watermark embedding locations. Platform: |
Size: 13312 |
Author:海 |
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