英语语法分析

These movies should not be altered or watermarked in anyway.

影片不得以任何方式修改原始画面或加盖水印。

The method is robust against the channel error, thus causing loss of watermarked indices.

对于信道误差引起的含水印索引丢失，该算法具有良好的鲁棒性。

For security reasons, several images in this report are watermarked in a way that is not apparent to the observer.

基于安全原因，本报告中的几幅图片被打上了水印，对于观察者来说就不那么清晰可见。