提出一种同时嵌入鲁棒性水印和易损性水印的复合型数字水印算法。
Embedding robust watermark and fragile watermark in one image simultaneously, an algorithm of compound, adaptive digital watermarking was presented.
基于DCT变换的鲁棒性水印方法是通过调整dct系数来嵌入水印信息的。
DCT based robust watermarking technique is to adjust the DCT coefficient to watermark.
第四章根据直流和交流信号的合成和分离方法，探索了一条频率域鲁棒性水印的新思路。
A novel digital watermarking scheme based on synthesis and separation method of direct and alternating signal is proposed in chapter 4.
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