可见图像分割、对象特征提取、基于特征设计识别算法，是图像对象识别的关键问题。

Firstly segment the object from images, then extract the features of the object, and finally identify the object based on the features.

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因此，增加了一个与透明图像形成对比的无装饰的构件，这也是为可见图像和物理体验间制造一点矛盾。

Thus there is an austere character that contrasts with a transparent image creating a slight contradiction between the visible image and the physical experience.

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实验结果表明，算法实现的水印具有不可见性，而且对于常见图像压缩和噪声干扰具有很好的健壮性。

Experimental results demonstrate that the watermark is invisible and robust against common image lossy compression and noise.

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