查询词典 watermark

Then the optimized watermark embedding turned to be a two-sided permutation Procrustes problem.

这类方法根据量化策略对每个图像子块修改其经变换后得

By showing that the equivalence is satisfied,the prover convinced the verifier of the presence of the watermark.

在计算离散对数困难的假定下，协议没有泄漏任何敏感信息并且被证明是零知识的。

Pseud random sequence is used to modulate the watermark to raise the security of this scheme

为提高算法的安全性，提出用伪随机序列对水印进行调制

The generation of watermark information is based upon quadratic residue theory and Rabin cipher system.

水印信息的产生基于二次剩余理论和Rabin密码体制，该算法在多个水印与宿主程序之间建立功能性的依赖关系，对真实水印起到防篡改的作用，增加了攻击难度，从而可对该类水印进行有效保护。

Then quantize the block DCT coefficients and embedding the watermark sequence by QIM method.

然后，用QIM的方法对分块DCT中低频系数进行水印的重复嵌入。

To improve the security of watermarking system, the shuffle algorithm is also adopted to randomize the watermark sequence to increase the attack difficulty.

为提高水印系统的安全性，在上述除第一种之外的所有算法中都利用了shuffle算法对水印序列进行置乱，增大了攻击的难度。

In the pre-process of embedding, both chaos encryption sequence and repletion code (a kind of simple error-correction code) are used to improve the security of watermark information and robustness of digital watermarking.

在水印嵌入前的预处理中，使用混沌序列加密和重复编码的方法来提高水印信息的安全性和数字水印的鲁棒性。

Do you want to reset the scale and position of watermark?

需要重新调整水印的大小和位置吗？

Three key pages showing 27 examples of the Crown and Straits Settlements overprint essays are followed by comprehensive revenue and judicial stamp studies revealing subtle features of different printings and watermark varieties hitherto unrecorded.

展品中的三个贴片，着重展示了27件皇冠图和" STRAITS/SETTLEMENTS "加盖的试样票，另展出了印花税票、司法印纸不同印刷的细微特征和迄今未报道过的水印变体。

The new method made digital watermark information hidden in the sequence of import modules and functions in the PE file.

新方法将数字水印信息隐藏于PE文件引入表模块与函数的排列顺序之中。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。