摘要
研究了基于离散余弦变换(DCT)的图像水印技术在彩色图像中的应用,提出了一种基于DCT域的彩色图像水印算法,该算法在保证水印不可见和鲁棒性的前提下,可以实现水印的盲提取。实验结果表明,此算法可以很好地保护图像的质量,并且对常用的图像处理具有较强的鲁棒性。
A watermark algorithm based on discrete cosine transformation（DCT） area, which can insure embedded watermark sightless and robust was put forward, moreover, blind picking would be feasible with this method. The experiments show that the algorithm can keep the quality of original image well. In addition, embedded watermark can be picked up after most kinds of attacking operations in image processing.
出处
《生物医学工程研究》
2007年第4期351-354,共4页
Journal Of Biomedical Engineering Research
