Iterative mixing embeds watermarking are used and extracting the watermarking by blind JADE algorithm.
利用混合的方法嵌入水印，再利用盲源JADE算法提取水印。
Results show blind algorithm can embed high-capacity watermarking into models, and reduce the time of extracting watermarking.
实验表明该算法能够在模型中嵌入大容量的水印消息，并减少了提取水印的时间。
During information extracting, the algorithm can restore the original engineering drawing accurately, and meets the requirements of high-precision machining, and also realizes the blind extraction.
提取时可以精确地恢复原始工程图，满足了工程图加工精度高的要求，并且实现了盲提取。
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