【摘要】 提出一种基于色彩空间变换和离散小波变换(DWT)的彩色图像水印算法.算法首先将彩色原始图像和彩色水印图像从RGB模式转换到YIQ模式,然后将彩色水印图像的Y,I,Q分量分别嵌入到彩色原始图像Y,I,Q分量的DWT变换系数中.该算法的特点是方法简洁,嵌入水印信息量大,提取的水印可视效果良好.通过大量实验表明,该算法对常见的攻击具有较强的鲁棒性.更多还原

【Abstract】 A color image-watermarking algorithm based on color spatial conversion and DWT is proposed.In this paper,firstly,the color original image and color watermark image are converted from RGB mode to YIQ mode,then Y,I and Q of color watermark are embedded into coefficients respectively which Y,I and Q of the color original image use DWT.The characters of this algorithm are simple,much more watermark information embedded and good visual quality to detected watermark.By a lot of experiments testifying,the algorithm has strong robustness to some common attacks.更多还原