The idea of visual work sheet system which combines the characteristic of the substation management is put forward.
结合变电管理的特点，提出一种可视化工作票系统设计思路。
Human visual system has some masking effects, that is the reason why steganography based on the characteristic of HVS has good visual imperceptibility and large payload.
由于视觉系统具有一些视觉掩蔽效应，因此基于视觉特性的图像隐写算法可以在保证较大的数据嵌入量的同时，使得隐写图像保持良好的视觉效果。
By analyzing the characteristics of the brightness and contrast characteristic of the human visual system, an adaptive visible watermarking algorithm based on DCT was proposed in this paper.
分析人类视觉系统的亮度和对比度特性，提出了一种DCT域自适应可见水印算法。
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