计算机科学 ›› 2015, Vol. 42 ›› Issue (7): 85-90.doi: 10.11896/j.issn.1002-137X.2015.07.018
彭 乐 金 聪
PENG Le JIN Cong
摘要: 提出了一种适用于Android智能手机的灰度均值数字水印算法。在嵌入阶段,将经过像素重新组织的水印图像嵌入载体图像中;在提取阶段,先提取出初始水印,再判断初始水印是否需要区域替换,如果需要,则进行区域替换,否则不进行;最后,将初始水印还原成所需的水印图像。实验表明,该算法在具有良好水印透明性的同时,对JPEG压缩、加噪声、裁剪等常见的攻击具有鲁棒性。
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