Assisted by the Watson visual model, it is convenient for balancing the relationship between watermark robustness and visual transparency.
借助于该视觉模型,很容易权衡水印鲁棒性和不可见性的关系。
Thirdly, finding Aimed at image watermark robustness, an evaluative method based on synergetic and its usage was first advanced. The experimental results demonstrate practicable.
根据协同学中的序参量理论,提出了一种对数字水印的鲁棒性进行评价的方法和标准,并从理论和实验上证明了这种方法的有效性。
With theoretic testify and experimental analysis, the method of using synergetic order parameter as quantitative index of digital watermark robustness has feasibility and practicability.
从理论推导和实验计算分析,用协同序参量作为数字水印的鲁棒性评判指标,具有一定可行性和实用性。
Embedding strategy, embedding formula and the watermark strength all affect robustness of watermarks.
嵌入对策、嵌入公式、嵌入强度都影响水印的稳健性。
Furthermore, this algorithm, adapted to the local image characteristics, can control the robustness of embedded watermark and improve visual quality of the watermarked video.
同时这种算法可以根据图像局部特征控制水印鲁棒性,改善画质。
An digital image watermark algorithm is proposed based on the synergetic neural network, combined with encryption technique, to guarantee its robustness and security.
为保证图像数字水印的鲁棒性和安全性,结合加密技术,提出了一种使用协同神经网络的图像数字水印算法。
Experiments could prove that the watermark algorithm has strong robustness for image processing.
实验证明,该水印算法对图像处理有较强的鲁棒性。
In the existing method of digital watermark, for embedding watermark information, authors modify more or less original image data through various methods to limit its robustness and security.
已有的数字水印方法为了嵌入水印信息都对原图像数据采用各种方法或多或少地进行了修改,这样做使其鲁棒性和安全性受到限制。
Experimental results show that this watermark detector has not only the good robustness to Gaussian noise, but also the very strong resistant ability to translation and rotation attacks.
实验结果表明,该水印检测器不仅对旋转、平移攻击有很强的抵抗能力,而且对随机高斯噪声也具有良好的鲁棒性。
To satisfy the balance between the robustness and the imperceptivity, the HVS model is used to adaptively adjust the watermark embedding strength.
为了满足鲁棒性和不可感知性之间的平衡,使用人类视觉模型自适应地调节水印的嵌入强度。
In the design of watermark encoder, through the combination of side information and watermark, our system also obtained the robustness against copy attack.
在水印编码的设计上,通过将载体的个性信息与水印融合,使整个系统对拷贝攻击也具有鲁棒性。
The experimental results demonstrate that the watermark has the considerable perceptual invisibility and robustness, and the operation complexity is comparatively low in this scheme.
相关试验证明,本方案的水印稳健性和不可见性均达到了相当水平,运算复杂度也比较低。
Simulation results show that the proposed method may improve the PSNR for embedding the visible watermark and enhance the robustness of the invisible watermark.
实验结果显示,所提的方法能有效改善数字水印技术中图像品质与水印鲁棒性相互制衡的问题。
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 robustness of a watermark is determined by the watermark strength. The adjustment of the watermark intensity is made manually now, it is suitable for a few images.
水印的强度决定其鲁棒性,多数水印算法都是人为地调整水印的嵌入强度,其缺点是只对少数图像适用。
From the experiment results, it indicates that, after the watermarked MPEG-4 video suffer filtering, rotation, scaling and transcoding, the watermark possesses good imperceptibility and robustness.
实验表明,算法在MPEG - 4水印视频经过滤波、旋转、尺度变化、代码转换编码等处理后,水印在可见性和鲁棒性等方面取得了良好的效果。
Furthermore, to enhance robustness, a random permutation of the watermark is used to defeat the attacks of signal processing, such as image crops.
另外,为了增强鲁棒性可对水印数据进行随机置乱操作以抵抗剪切等信号处理操作。
To improve the robustness of the algorithm, we propose a new method to control the local watermarking strength and develop a weighting process of watermark detection.
在该算法中,我们提出了新的局部水印嵌入能量控制方法以及新的水印检测技术——双脉冲加权水印检测技术。
And before embedding, the watermark picture is processed, which is to enhance the robustness of the watermark.
而且在嵌入之前,对水印图像进行了预处理,增强了水印的鲁棒性。
Robustness and invisibility are used to evaluate the performance of the watermark algorithm.
鲁棒性及掩蔽性是衡量数字水印算法性能的重要指标。
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。
The experimental results show that the method can increase the watermarking strength so that the robustness of digital watermark is enhanced and that the method has very good adaptability.
实验表明,使用该方法能在确保水印不可见的同时提高水印的嵌入强度,从而可提高水印的顽健性,且该方法具有很好的适应性。
To insure the system's high robustness is the difficulty of the audio watermark technology, with satisfying the hearing transparency and low computation complexity.
在音频水印技术中,满足听觉透明性和低计算复杂度要求的同时,要保证系统的高鲁棒性是音频水印技术中的难点。
A utilizable Digital watermark system should own good Robustness, security, transparency.
一个有效的水印体系必需具备较强的鲁棒性、安全性和透明性。
The scheme meets properly the requirement of invisibleness and robustness for watermark.
该方案较好地兼顾了对图像水印的不可见性要求和鲁棒性要求。
The robustness of the watermark system was realized by using image watermark of practical content;
通过有实际内容的图像水印来实现水印系统的鲁棒性;
Keeping the variations of synthesized audio signals perceptually imperceptible, the robustness of the watermark is fully assured.
在保证合成音频信号质量不发生可察觉变化的同时,充分保证水印数据的健壮性。
Keeping the variations of synthesized audio signals perceptually imperceptible, the robustness of the watermark is fully assured.
在保证合成音频信号质量不发生可察觉变化的同时,充分保证水印数据的健壮性。
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