1·To meet the large image watermark, this paper designed a fast watermark algorithm according to the characteristics of the fast curvelet algorithm and the human visual.
为适应大图像的数字水印，本文结合快速曲波算法的特点和人类视觉特征，设计了一种快速的数字水印算法。
2·The second generation curvelet theory adopted a new framework which had the reduction parameter and the simple realization.
第二代曲波理论采用了新的框架结构，参数减少，实现更加简单。
3·Experimental results show that based on the ridge of the wave and Curvelet watermarking algorithm has some theoretical and practical value.
实验结果表明本文的基于脊波和曲波的水印算法具有一定理论和实用价值。