【摘要】 提出了一种基于DCT(离散余弦变换)的图像水印嵌入技术.同时提出了一种新的图形编码方案-方形码,并且将这种方形码作为水印信息嵌入到宿主图像当中.实验结果表明本水印具有很好的不可见性,并且对图像压缩和噪声干扰能力很强,易于用数据库处理,实用性能很好.更多还原

【Abstract】 A newly image watermarking technique based on Squarecode and DCT are introduced. The experimental results show that the proposed watermark is invisible and robust against common image lossy compression and noise. To some extent, the technology have lots of practical values and theoretical values.更多还原