摘要
为解决普通水印图像包含信息量较少的问题,提出一种基于二维码的水印算法。将待隐藏信息制成二维码,再将其作为待隐藏水印。然后对二维码图像进行置乱,用其替换载体图像的最低有效位,从而将其隐藏到载体图像中去,达到水印嵌入的效果。提取时,将待测图像的最低有效位提取出来,并进行反置乱变换,即可恢复隐藏的二维码,进一步得到原隐藏信息。实验效果良好,而且二维码作为隐藏信息能携带的信息容量要大于一般的二值图像。
In order to solve the problem that the common watermark image contains less information, this paper proposed a novel digital watermarking algorithm. The hiding information was embedded as generated two-dimensional code. The two-dimensional code image was used as the hiding watermark. After the hiding watermark image was scrambled, then it was used to replace the least significant bits of original carrier image, so that it can be hidden in the carrier image, and the effect of the image information hiding was achieved. The scrambled two-dimensional code image can be recovered from the least significant bits,then the hiding information can be obtain by the extracted two-dimensional code image. The experimental results were good, and the two-dimensional code as the hiding image can carry more information than the general binary image.
出处
《商洛学院学报》
2016年第2期6-9,42,共5页
Journal of Shangluo University
基金
陕西省自然科学基金项目(2014JM2-6122)
关键词
最低有效位
二维码
数字水印
least significant bit
two-dimensional code
digital watermarking
