PDM has specific elements to apply process methods.

PDM在过程途径的应用上有特定的元素。

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In fact this technique utilizes image process methods to hide some information.

它实际上是利用数字图像处理技术来实现隐藏信息。

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In fact this technique utilizes image process methods to hide some information.

它实际上是利用数字图像处理技术来实现隐藏信息。

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