不可见的

Quantity of experiment data shows that both of these two algorithms have good robustness, and the imperceptibility of watermark can be guaranteed at the same time.

实验结果表明，所提的两种算法都具有良好的鲁棒性，同时也很好地保证了水印的不可见性。

In order to test the imperceptibility and robustness of the three algorithms mentioned above, a lot of experiments are done. Experimental results demonstrate that our schemes are effective and useful.

实验结果标明，三种算法都具有良好的不可见性，对常见的图像处理操作具有较好的鲁棒性。

Finally, this paper proves the algorithm reliable in robustness, imperceptivity and safety by analyzing and comparing the datum from many attack experiments.

最后，本文通过对多个"攻击实验"的数据进行分析和对比，证明我们的方法在鲁棒性、不可见性和安全性等方面是可以信赖的。

Experimental results show that the algorithm has a fine imperceptivity of watermark embedded and is strongly robust to attacks such as re-sampling, color dithering, smoothing, noise adding, and JPEG-compression.

实验结果表明：该算法具有很好的水印不可见性，对常见的图像处理攻击：如重采样、颜色抖动、平滑、加噪声和 JPEG 压缩等具有很强的稳健性。

Theoretical analysis and experimental results show that the proposed scheme can improve the robustness and invisibility of watermarking.

理论分析和仿真结果表明，采用文中算法嵌入的水印具有较好的不可见性和较强的鲁棒性。

Proposed a digital watermarking algorithm for copyright protection of digital image with the invisibleness and robustness.

从提高水印的不可见性和鲁棒性动身，探讨了一种应用于图像版权维护的基于HVS和DCT域的水印算法。

Therefore, skeletal myogenesis and differentiation can be considered as a highly ordered and irreversible process.

可见肌细胞的生成和分化是一个不可逆的、高度有序的过程。

"Dark matter : Nonluminous matter not directly detectable by astronomers, hypothesized to exist because the mass of the visible matter in the universe cannot account for observed gravitational effects."

暗物质：不发光的物质，天文学家无法直接发现，由于宇宙可见物质的质量无法解释观测到的重力效应而假设其存在。

"Dark matter : Nonluminous matter not directly detectable by astronomer s, hypothesized to exist because the mass of the visible matter in the universe cannot account for observed gravitational effects."

暗物质：不发光的物质，天文学家无法直接发现，由于宇宙可见物质的质量无法解释观测到的重力效应而假设其存在。

"Dark matter : Nonluminous matter not directly detectable by astronomers, hypothesized to exist because the mass of the visible matter in the universe cannot account for observe d gravitational effects."

暗物质：不发光的物质，天文学家无法直接发现，由于宇宙可见物质的质量无法解释观测到的重力效应而假设其存在。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。