计算机科学 ›› 2018, Vol. 45 ›› Issue (8): 151-155.doi: 10.11896/j.issn.1002-137X.2018.08.027
刘宇, 杨百龙, 赵文强, 袁志华
LIU Yu, YANG Bai-long, ZHAO Wen-qiang, YUAN Zhi-hua
摘要： 针对当前密文域图像可逆信息隐藏容量不足,可逆性不强且实现复杂、效率低下的问题,提出一种基于自适应的块参照值的密文域可逆信息隐藏技术。该技术对图像按照四叉树分割的方式进行自适应分块,对部分图像块求取均值并保留,利用伪随机序列加密图像,并通过加法运算嵌入秘密信息。利用保留的均值可独立进行秘密信息的提取和图像解密,载体图像可完全恢复。实验表明,该方法简单、高效且计算简便,具有较好的隐藏容量、可逆性和可分离性。
中图分类号:
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