The blurring of security watermark is one of the important indicators in the quality inspection system of security printing.
在防伪印刷纸张质量检测系统中，纸张防伪水印的模糊是其检测的重要指标之一。
An digital image watermark algorithm is proposed based on the synergetic neural network, combined with encryption technique, to guarantee its robustness and security.
为保证图像数字水印的鲁棒性和安全性，结合加密技术，提出了一种使用协同神经网络的图像数字水印算法。
The security features of the former 10, 000 yen notes were the watermark, the use of ultrafine line printing, and luminescent ink.
前一版10000元钞票的防伪特征是水印、精细线条印刷和发光油墨。
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