用于图像认证的安全可逆水印算法
A Secure Reversible Watermarking Algorithm for Image Authentication
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摘要: 在图像中嵌入可逆水印时,为了提高水印算法的安全性,采用参数化整数小波并利用位于细节子带整数小波系数的特点,提出了一种安全性高的可逆水印算法.实验结果表明,算法具有水印不可见性好、安全性高及篡改定位准确的特点.Abstract: By embedding reversible watermark,the original image can be recovered from the watermarked image when it is deemed to be authentic.To improve watermark security,a high secure reversible watermarking algorithm is proposed which adopts parameterized integer wavelet transform and the features of integer wavelet coefficients in the detail bands. Experimental results demonstrate the proposed scheme has good invisibility,high security and accurate localization for tampered area.
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