A digital image watermarking algorithm based on quadtree and error correcting code 基于四叉树和纠错编码的数字图像水印算法
Error correcting codes 错误纠正代码
In order to improve watermarking robustness against distortions and attacks , it is natural to envision the use of error correcting codes ( ecc ) 为了改进水印抵抗失真和攻击的鲁棒性,利用纠错编码是很自然地被想到的。
Then it is dicussed that how to capture and play and synchronize the video and audio data with software . error correcting code are also discussed , the rs code has been used to correcting code 然后研究了如何用软件的方法实现视音频数据的采集与播放,并讨论了视音频数据的同步问题。