| 1. | The scramble times of original image is optional , after the scramble process , the watermark image is scattered into the whole spatial space of original image ; it enlarged the difficulty of extraction and inspection , and enhanced the anti - attack and security
原始图像置乱的次数是可调的参数,通过置乱过程,使水印均匀分散到原始图像的整个空间里,这样加大了水印提取和检测的难度,增强了水印的抗攻击性,鲁棒性和保密性。 |
