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基于混沌序列的LSB水印算法

于 2020-12-03 发布
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该算法实现了以下功能:1.先对灰度级的水印图像进行取每位高四位的二进制化处理,得到长度为原来四倍的二进制水印数据;2.产生一个随机二进制序列,即密钥,长度与二进制水印数据长度相同;3.利用此二进制序列对水印图像进行混沌加密;4.根据二进制水印的对应位,修改图像的最低位,以保证其奇偶性;5.根据要检测图像中每个像素的最低位的奇偶性提取水印信息;6.根据密钥对水印图像进行还原。

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