【摘要】 提出了一种针对24位彩色图像的基于二维离散小波变换(DWT)低频域的水印嵌入和提取算法,并进行了大量的研究和试验。该方法将原有数字彩色图像的RGB格式转变为YUV420格式,然后再对转变后的图像进行小波变换。试验结果表明,实现的水印算法具有很好的透明性和鲁棒性。更多还原

【Abstract】 In this article,We bring forward a method on the basis of DWT embedding and extraction of watermarking for the 24-phase colored image and have made many studies and tests on the watermarking embedding under the conditions of low frequency DWT.The method first transforms the RGB digital colored image into YUV420,and then makes cosine transformation on the image.The transparence and robustness of watermarking can be easily seen through the results of test.更多还原