摘要
随着网络、无线通信和摄像机便携设备的快速发展,带来了数字图像很容易散布、复制和修改。针对此类问题,提出一种以手机IMEI/IMSI码为水印信息并嵌入到手机图像的数字水印算法,从而达到手机图像的版权保护。首先获取手机IMEI/IMSI,使用BCD编码将其转换成二进制向量,再使用BCH编码转换成64×64水印位图作为水印信息;然后采用离散余弦变换、离散小波变换和奇异值分解结合的算法将水印信息嵌入到手机图像;最后提取水印信息来获取用户的手机信息。实验表明该算法能够实现盲提取,具有良好的不可见性、鲁棒性,能够抵抗一定的压缩、噪声等攻击。
With the rapid development of Internet, wireless communication and the camera-capable portable devices, digital images are easily distributed, copied and modified. In view of this, thepaper proposes an algorithm for embedding IMEI/IMSI into mobile phone images, so as to protect the mobile images copyright. Firstly, get the IMEI/IMSI and use the BCD codes into the binary vector. Secondly, the binary vector is transformed using BCH code into 64×64 watermarking bitmap, which is used as watermarking information. Thirdly, combine DCT、DWT with SVD and embed watermarking information into mobile phone images. Then, extract the watermarking information which can be convenient for obtaining the user mobile phone information. The experimental results show that the algorithm can realize blind extraction, has good invisibility and robustness, and can resist some attacks such as compression and noise.
出处
《电视技术》
北大核心
2016年第1期47-50,71,共5页
Video Engineering
