In this paper, we firstly introduce the theory of JPEG compression algorithm.
本论文采用JPEG标准，完成了JPEG编码算法的芯片设计。
Experiment results show that this algorithm has better robustness in JPEG compression, random noising attacks, cutting and noise adding.
实验结果表明该算法对JPEG压缩、随机噪声攻击、剪切及加噪等具有较高的鲁棒性。
The experimental results show that both of them can resist signal distortions such as JPEG compression, Gauss noise, and the improved algorithm has better robustness and security.
从试验结果看，两种算法能够抵抗JPEG压缩以及高斯噪声等信号处理的攻击，且改进后的算法水印鲁棒性及保密性得到了增强。
The experiment results show that the algorithm has good error feature and the compression efficiency is slightly lower than that of JPEG-LS and JPEG2000.
实验结果表明，本算法具有很好的抗误码性能，压缩效率比JPEG-LS和JPEG2000略有下降。
Experiment shows that the algorithm is resist in common watermarking attacks suck as noise, rotate, resize and JPEG compression.
实验表明，该算法对于噪声、旋转、缩放和JPEG压缩等常见攻击有良好的鲁棒性。
According to the theory of the algorithm, the noise elimination algorithm based on noise model can also be extended to the other compression algorithms such as DCT, DPCM, JPEG, SPIHT and MPEG.
从算法的理论基础来看，其中基于噪声模型的噪声清除算法对其他编码算法(如dct、DPCM、JPEG、SPIHT、MPEG等等)同样具有推广意义。
The experimental results prove that this algorithm is invisible, robust against the attack of JPEG compression, noise and cut-and-paste attack.
实验结果证明该算法具有良好的不可见性，对JPEG压缩、噪声攻击和剪切攻击都有很好的鲁棒性。
The experimental results show that this algorithm possesses better invisibility and has good robustness to clipping, noise, filtering and JPEG compression attack.
实验结果表明该算法具有较好的不可见性，对剪切、噪声污染、滤波、JPEG压缩攻击具有良好的鲁棒性。
The experiments results show that this algorithm has a good robustness for the JPEG compression with the fixed coefficient, and a good fragileness for the illegal manipulation.
实验证明该算法对固定系数的JPEG压缩有较好的鲁棒性，并对图像的恶意篡改有较好的脆弱性。
The image compression standard in PACS now is the JPEG standard based on the DCT (Discrete Cosine Transform) algorithm, which can only be applied in the limited areas.
目前在PACS系统中较多采用的是JPEG图像压缩标准，该标准采用以离散余弦变换算法为主的区块编码方式，但有一定的局限性。
Compared with the other spread spectrum algorithm, this one is more robust against the typical image processing attacks such as adding noise, filtering and JPEG compression.
水印对剪切、JPEG有损压缩、中值滤波、抵抗噪声干扰等常规图像处理手段比较其他的随机序列扩频算法具有更好的鲁棒性。
Given compression efficiency, we selected JPEG image compression algorithm.
考虑到压缩效率，我们选择了JPEG图像压缩算法。
Analyzing the character of the authentication algorithm in the compression field and designing a secure authentication algorithm in the JPEG compression field.
针对互联网上图像传播的需要，分析了压缩域中认证算法所应有的特征，并设计了在JPEG压缩域中的安全认证算法。
Experimental results show that this algorithm is robust and the hiding text is invisible, and it is excellent in resisting the JPEG compression resistance, noise and clipping.
实验表明，该算法具有较强的鲁棒性和不可见性，在抵抗JPEG压缩、噪声、剪切等干扰具有较优良的性能。
We test the algorithm performance in the cases of single watermark, double watermarks and multi watermarks when different distortions such as JPEG compression, image resizing and cropping are applied.
该文就单水印，双水印以及多水印情形进行了仿真并进行JPEG压缩、图像缩放、剪切等失真测试。
Experiments prove that the algorithm has a strong robustness to resist wave filtering, JPEG compression and ordinary geometric attack.
大量实验表明，本算法对抵抗各种滤波、JPEG压缩以及一些几何攻击具有较强的稳健性。
It studies JPEG model and watermarking model and proposes an algorithm of watermark in compression domain.
研究了JPEG压缩标准和数字水印模型，提出一种基于JPEG压缩的二值图像水印算法。
The experimental results show that it is a high robust algorithm against JPEG compression and cropping, median filtering and noise adding.
实验结果表明，该算法对JPEG压缩、剪切、中值滤波、加噪等具有较好的鲁棒性。
The experimental results demonstrate that the watermarks generated with the proposed algorithm are invisible and robust against JPEG lossy compression and noise and cut processing.
实验结果证实了所提出的水印算法具有很好的不可见性，对JPEG有损压缩、噪声、剪切等攻击具有良好的稳健性。
The experiments show that the blind watermarking algorithm is robust in JPEG image compression, image clipping, image scaling and image filtering, especially in wavelet image compression.
实验结果表明，该算法对JPEG压缩及图像剪裁、缩放、滤波有较好的鲁棒性，特别对于基于小波压缩算法的图像具有很好的鲁棒性。
The experimental results and attack analysis show that the watermark algorithm is robust against some image processing operations, such as JPEG lossy compression , rotation, cropping and noise adding.
实验结果表明该水印算法具有良好的抗JPEG压缩、旋转、裁剪和加噪等常见攻击的能力。
Compared to the original algorithm, the security and the ability of resisting some attacks such as cutting and JPEG compression were obviously enhanced in the watermark system.
改进后的算法与改进前相比较，水印系统的安全性得到了提高，且对抗剪切、JPEG压缩等攻击的能力明显增强。
Experimental results show that the proposed algorithm keeps the quality of the image well and is robust enough to JPEG compression, noise, filtering, image scaling, image enhancement etc.
仿真试验结果表明该水印系统不仅较好地保持了图像的质量，而且对JPEG压缩、噪声污染、滤波、图像剪切等操作都显示了较强的鲁棒性。
JPEG has been one of the most popular compression standards of digital image. It is ensured that the watermarking algorithm is very robust against image compression, especially JPEG compression.
这就保证了水印算法对有损压缩具有极好的鲁棒性，特别是JPEG压缩。
JPEG has been one of the most popular compression standards of digital image. It is ensured that the watermarking algorithm is very robust against image compression, especially JPEG compression.
这就保证了水印算法对有损压缩具有极好的鲁棒性，特别是JPEG压缩。
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