摘要
移动通信的发展使手机彩色图像被广泛使用,针对IPHONE平台手机拍摄的彩色图像,提出了基于小波分解、离散余弦变换、奇异值分解的彩色图像水印算法。算法对手机所拍摄的图像进行版权保护,首先将手机所处的GPS位置信息进行编码作为水印信息,然后将该信息嵌入图像的频域系数中,得到嵌入位置信息的彩色图像,最后,在图传输后,接收方可通过检测水印信息知道传输者的GPS位置信息。实验证明该算法是有效的,可在一定程度上抵抗手机特定环境下由传输工具QQ、微博、微信带来的图像压缩和缩放攻击等。
The development of mobile communication makes widely used mobile phone color images. The paper proposed an algorithm based on wavelet decomposition and discrete cosine transform and singular value decomposition for the color images. Algorithm provide copyright protection of the color images,first the phone＇s GPS location information is encoded as a watermark,then the watermark is embedded into the frequency domain coefficients of the image,after transfer the watermarked image,the receiving part（ such as a company） can get the watermarked image and can know transmission＇s（ such as a salesman） GPS location information through watermark detection. Experiments show that this algorithm is effective and can survive in a certain compression attack under the specific environment of mobile phones,the attack is brought by the transport of the image through QQ,weibo,micro letter etc.
出处
《杭州电子科技大学学报（自然科学版）》
2014年第3期69-72,共4页
Journal of Hangzhou Dianzi University：Natural Sciences
基金
国家科技支撑计划课题资助项目(2012BAH91F03)
关键词
彩色图像
频域
位置信息
水印
color images
frequency-domain
location information
watermark
