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- JPEG compression does not work well for line drawings, blocks of solid color, and sharp boundaries. JPEG压缩不适用于线条图形、纯色块和清晰边界。
- An Avalon stream slave peripheral LCD Controller is also been designed to form a whole JPEG compression system. 此外,设计了Avalon流模式的LCD控制器,从而构成完整的基于SOPC的JPEG压缩系统。
- JPEG compression coding system source code as good a package, the user can conveniently added to the system. JPEG压缩编码系统源代码;做好了封装;用户可方便的加入到自己的系统中.
- Standard JPEG compression method was used in core image editor,thus it needed to be designed. 岩心图像编辑器采用标准的JPEG压缩方法,需要对编辑器进行设计。
- JFIF file format just one image or around the JPEG compression in a simple way, they don't have any more features. JFIF文件格式只是将一种图像格或环绕JPEG压缩的一种简单方法，它们没有其他的更多功能。
- The JPEG compress method was applied, and the histogram cross matching function was used to measure the matching degree in this research. 利用JPEG方法对图像进行压缩，并采用直方图相交匹配函数求得图像灰度级的匹配程度。
- A useful watermark scheme should be visually imperceptible and must be robust to resist various attacks: such as JPEG compression. 一种有用的水印设计应该让人视觉上毫无察觉，而且必须有够强鲁棒性去抵抗各种攻击，例如：JPEG压缩。
- Optimize to File Size: Ability to automatically select both the file format (JPEG or GIF) and JPEG compression level to achieve the selected file size. 优化文件大小：可以自动选择文件格式（jpeg或gif）和选择jpeg的压缩率，以实现选定的文件大小。
- Instead, they may very well be looking for image optimisation, JPEG compression, graphic formats, save pictures, camera software and so on. 相反，他们很可能找的是图像优化， JPEG压缩，图像格式，保存图片，拍照软件等。
- The algorithm is robust, invisible and secure against the original image process methods such as JPEG compression, crop, noise and filtering etc. 所提出的算法对常用的图像处理如JPEG压缩、加噪、剪切和滤波等攻击具有较好的鲁棒性、不可见性和安全性。
- And it is robust against normal image processing and attacks such as JPEG compression, adding noise, filtering and cutting. 对一般的图像处理和攻击如：JPEG压缩，加噪声，剪切，滤波等具有很好的鲁棒性。
- By studying JPEG compression and HVS theory, watermarking information is embedded in the DCT intermediate frequency coefficient part of the image. 通过对JPEG压缩以及人眼视觉系统理论的研究，确定了把水印信息嵌入到图像的离散余弦变换域的中频系数部分；
- 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。
- Based on DCT transform, this algorithm can effectively guarantee the transparent of watermark and endure the attack of JPEG compression, noise and filter,etc. 该算法在图像的DCT域中完成,在很好的保证了水印的透明性的前提下,可以很好的抵御JPEG压缩、噪声干扰和中值滤波等攻击。
- The paper introduces the JPEG compression algorithm firstly, including its history and the basic situation of this stage, compression principle, and so on. 本文对JPEG图像压缩方法进行了基本介绍，包括它的发展历史，现阶段的研究情况，压缩原理等。
- Demo subdirectory of the contents of the demo executable, JpegLib subdirectory of the contents for JPEG compression coding for the main program for the realization Lib source. 配套源程序。子目录 Demo 中的内容为演示用的可执 行程序，子目录 JpegLib 中的内容为进行 JPEG 编码压 缩时供主程序使用的 Lib 库的实现源码。
- On the other hand, this means is capable of resisting a wide variety of attacks, such as tortuosity, fuzziness, cropping, JPEG compression, and pepper &salt noise attack. 本方法能够抵挡各式各样的攻击，例如扭曲、模糊化、剪裁、JPEG压缩、胡椒盐杂讯攻击等。
- The experimental results show that the algorithm is robust against some image processing such as JPEG compression, rotation, median filtering, noise and so on. 实验结果表明，该算法对JPEG压缩、旋转、滤波、加噪等图像处理操作有很强的鲁棒性。
- Experimental results show that the embedded digital watermarking is invisible and robust enough against common image processing such as JPEG compression, filter, adding the stochastic noises and shearing. 实验结果表明：使用该算法嵌入的数字水印具有很好的隐蔽性，并且嵌入水印的图像对有损压缩、滤波、加入随机噪声和剪切等攻击操作具有较强的鲁棒性。
- The algorithm makes uses of the invariant before and after JPEG compression, which the watermark is semi-fragilely embedded in DCT domain and the key is steadily bided in the carrier simultaneously. 利用JPEG压缩前后的不变量，把水印信息半脆弱地嵌入到图像的DCT域中，同时密钥也被稳健地隐藏在载体信息中。
