Explanation from Sai Ma: The experiments in this paper are conducted on Caffe framework. In Caffe, there is an API to directly set the gradient in Matlab. I wrongly use it to control the 'probability', in fact, I modify the gradient directly. The misusage of API leads to wrong experiment results, and wrong theoretical analysis. Apologize to readers who have read this paper. We have submitted a correct version of this paper to Multimedia Tools and Applications and it is under revision. Thanks to Dr. Patrick Bas, who is the Associate Editor of TIFS and the anonymous reviewers of this paper. Thanks to Tingting Song from Sun Yat-sen University. We discussed some problems of this paper. Her advice helps me to improve the submitted paper to Multimedia Tools and Applications.

翻译：Sai Ma 的解释:本文中的实验是在咖啡类框架上进行的。 在咖啡类中, 有一个 API 直接设置 Matlab 的梯度 。 我错误地使用它来控制“ 概率 ”, 事实上, 我直接修改梯度 。 滥用 API 会导致错误的实验结果和错误的理论分析 。 向阅读过本文的读者道歉 。 我们向多媒体工具和应用机构提交了 本文的正确版本, 正在修改中 。 多亏了TIFS 的副编辑Patrick Bas 博士和本文的匿名审查员。 多亏了孙亚森大学的Ting Song 我们讨论了这份文件的一些问题 。 她的建议帮助我改进提交给多媒体工具和应用机构的论文 。