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一种采用可视模板作为水印信号,利用人的视觉系统特性将图像块进行分类,通过在不同类图像块DCT域中修改中频系数来嵌入不同强度水印的算法。
一种基于块分类的图像水印算法
【摘 要】
：
一种采用可视模板作为水印信号,利用人的视觉系统特性将图像块进行分类,通过在不同类图像块DCT域中修改中频系数来嵌入不同强度水印的算法。
【出 处】
：
微型机与应用
【发表日期】
：
2002年06期
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