In this paper,a novel digital watermarking algorithm based on chaos,image iteration and wavelet transform is proposed. Firstly,authors obtain a watermark carrier of original image’s low-frequency smooth part by a wavelet multilevel decomposition of original image.
论文提出了一种基于混沌和图像迭代混合的小波变换数字水印算法,该算法首先把原始图像进行多级小波分解,得到其低频平滑子图作为水印载体,然后把这个载体子图与水印进行迭代混合,最后把这个混合子图与小波分解的其它子图进行小波重构,得到一个嵌入了水印的图像。
参考来源 - 小波、混沌和图像迭代在数字水印中的应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
This paper presents a novel and adaptive watermarking based on iteration mapping and image content.
提出了一种新颖的基于迭代映射和图像内容的自适应水印算法。
In order to attain a high-resolution image, the algorithm is based on the MAP algorithm, solving the optimization by proposed iteration steps with using the gradient projection method.
该方法基于MAP算法，通过利用梯度投影的方法对重建结果不断进行迭代优化得到最终的理想高分辨率影像。
Then the image is iteration thresholding segmented and binaried.
并对图像进行迭代阈值分割及二值化。
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