Last, the watermark is embedded into its correlative sub-block's HL and LH.
最后将水印信号分别嵌入相关图像块的细节子带HL和LH。
With the blocking idea, the watermark is embedded into the Fourier semicircle region.
该算法基于分块思想将水印嵌入到傅立叶频域的半圆形区域。
Because the watermark is embedded redundantly in the whole band of the model, the approach is robust against various attacks.
由于水印被冗余地嵌入在模型的整个频带上,该算法可有效地抵抗多种攻击。
In order to improve the robustness, each bit of the watermark is embedded into multiply positions which are irrelevant to each other.
为了提高鲁棒性,每一位水印被多次嵌入在不相关的多个位置中。
The DCT coefficients are arranged in a specific way, and then the watermark is embedded based on odd-even difference for optimal embedding.
提出一种鲁棒的DCT域盲水印算法,将DCT系数进行特殊的自定义排列分组,并根据奇偶差实现水印的最优化嵌入。
In addition, the watermark has strong robust when the video frequency effect is not dropped, because the watermark is embedded in luminance AC domain.
另外因为把水印嵌入到亮度dct的交流系数中,可在保证视频后果不失真的前提下,使水印具有很强的健壮性。
Methods Based on wavelet transform of watermark image and host image, low-frequency ingredient of watermark is embedded in low-frequency part of host image.
方法通过对宿主图像和水印图像的小波变换,该算法把水印图像的低频成分嵌入到原始宿主图像的低频部分。
The original image is transformed by wavelet transforming, and the watermark is embedded in the selected detail subband according to neighboring symbols average value.
原始载体图像经小波变换后,根据邻近特征平均值将水印嵌入到小波域中所选择的细节子带上。
The quantization step is adjusted through the neural network according to the statistics of the blocks, and then the watermark is embedded on the singular value of the blocks.
根据各个分块的统计特性,利用神经网络来确定的各个分块的量化步长,将水印嵌入到各个分块的奇异值。
The watermark is compressed and the watermark is embedded in part of the pixels of the original image, then the watermark-hiding algorithm based on information substitution can be realized.
首先对于水印图像进行压缩,然后在原图像的部分象素点中嵌入水印,从而实现基于信息替代的水印隐藏算法。
This paper proposes a novel robust spread-spectrum (ss) audio watermarking scheme based on DWT, in which a watermark is embedded into wavelet domain which original audio signal is transformed to.
文章提出一种基于小波变换的新颖的鲁棒语音扩谱水印算法。算法对原始语音进行离散小波变换,利用扩谱水印技术将水印隐藏到小波域。
The idea of embedded synchronic signal is proposed, which USES the synchronic signal for locating the watermark location.
同时引入了同步信号的思想,利用同步信号和水印序列号定位水印的嵌入位置。
Therefore, the embedded information, as required, should not interfere the normal use of the carrier data, and this is the hiding requirement of watermark technique.
因此,该技术要求添加到载体中的信息不破坏载体数据的正常使用,此即为水印技术的隐形性要求。
When a bit in chao sequences is equal to 0, hiding watermark information of the corresponding bit is embedded into Least Significant Bite.
如果混沌序列某一比特位为0,则将对应的加密水印信息嵌入到待嵌入图像信息的最低比特位。
Digital watermark is invisible mark embedded in digital image, video or audio documents, by detecting the information of watermarking to protect copyright of multimedia data.
数字水印是一种嵌入到图像、视频或者音频数据中的不可见标志,通过对水印信息的检测可以达到保护多媒体数据版权的目的。
Then after preprocessing the binary image watermark, with different embedding strength the watermark image is embedded by the rule of odd-even adjudgement.
对二值水印图像预处理后,根据分类结果采用不同强度自适应的嵌入水印,嵌入采用奇偶判决法则。
As the brightness of the embedded category exchange DCT coefficients, and so we can ensure video effects without really premise, so that the watermark is very robust.
另外因为嵌入到亮度类dct的交流系数中,所以可在保证视频后果不失真的前提下,使水印具有很强的健壮性。
It does not need to use the original image to extract embedded watermark, therefore it is not only suitable for still images but also videos.
在检测水印时无需使用原图像,从而能够有效应用于图像和视频信号的水印处理。
Then after preprocessing the binary image watermark, with different embedding strength the watermark image is embedded by the rule of odd-even adjudging.
对二值水印图像预处理后,根据分类结果自适应的嵌入水印,嵌入采用奇偶判决法则。
Original watermark is mapped to watermark information, which can be directly embedded to the host, with spread-spectrum communication technique.
算法将原始水印利用扩频通信技术生成能够直接嵌入的水印信息;
The blind watermark is obtained by replacing the value of the embedded pixel of the original host image with the average of adjacent pixels.
通过将水印嵌入点的宿主图像的像素值更改为其近邻像素值的均值,而实现“盲水印”的提取。
A digital watermark is an invisible mark embedded in a digital image that may be used for copyright protection.
数字水印是嵌入在数字图象中看不见的的标记,以此来保证数字图象的版权不受侵犯。
Watermark is iteratively embedded into each local region centered at the points. HVS is used for the invisibility of the watermark.
水印重复地嵌入到每一个鲁棒的显著兴趣点的局部邻域内,并使用人眼视觉模型来调整水印信号的嵌入强度。
The key of digital watermark to copyright protection is the imperceptibility and robustness for embedded information.
用于版权保护的数字水印设计的关键是水印信息嵌入的隐蔽性和抵抗攻击的鲁棒性。
A gray level image with rich details is used as a watermark and embedded in vector transform domain, more than scalar transform domain used traditionally such as discrete cosine transform domain, etc.
本文提出了一种新的数字静止图像的水印嵌入算法,该算法将含有丰富细节信息的灰度级图像作为水印,水印嵌入过程不是在传统的标量变换域(如离散余弦变换域等)内进行,而是在矢量变换域实现。
A digital watermark is the information that is imperceptibly and robustly embedded in the host data such that it cannot be removed.
数字水印是嵌入宿主数据中、具有隐蔽性且不容易去除的数字信息。
The experimental results show that the embedded watermark is robust against the attacks such as frame drop, swap and collusion.
对于丢帧、帧重组以及共谋攻击有很强的鲁棒性。
The features of the proposed algorithm are as follows: (1) Synchronization code is embedded into audio with the watermark, and the watermark thus generated has the ability of self synchronization.
该算法具有如下特点:(1 )在隐藏水印信息的同时,嵌入一个同步信号,使水印具有自同步能力;
The strength of the embedded watermark is image-adaptive according to the wavelets quantization noise, and combined with the error-correct code, it improved the characteristic to anti-attack.
根据小波域量化噪声自适应地确定嵌入强度,并结合纠错编码,提高了抗攻击能力。
The strength of the embedded watermark is image-adaptive according to the wavelets quantization noise, and combined with the error-correct code, it improved the characteristic to anti-attack.
根据小波域量化噪声自适应地确定嵌入强度,并结合纠错编码,提高了抗攻击能力。
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