Generally speaking, being an efficient information hiding scheme, what we want to achieve is high embedding capacity of the cover image and high visual quality of the stego image, high visual quality is also called em...Generally speaking, being an efficient information hiding scheme, what we want to achieve is high embedding capacity of the cover image and high visual quality of the stego image, high visual quality is also called embedding efficiency. This paper mainly studies on the information hiding technology based on gray-scale digital images and especially considers the improvement of embedding capacity and embedding efficiency. For the purpose of that, two algorithms for information hiding were proposed, one is called high capacity of information hiding algorithm (HCIH for short), which achieves high embedding rate, and the other is called high quality of information hiding algorithm (HQIH for short), which realizes high embedding efficiency. The simulation experiments show that our proposed algorithms achieve better performance.展开更多
嵌入效率高和隐藏信息量大的信息隐藏算法,已成为信息安全领域研究的一个热点。通过对该类信息隐藏算法的分析,提出了一种高效率的随机分块信息隐藏算法ERS(an Efficient high payload and Ran-domly selected sub-blocks image Stegano...嵌入效率高和隐藏信息量大的信息隐藏算法,已成为信息安全领域研究的一个热点。通过对该类信息隐藏算法的分析,提出了一种高效率的随机分块信息隐藏算法ERS(an Efficient high payload and Ran-domly selected sub-blocks image Steganography)。实验与分析结果表明:该算法不仅能够减小对载体的修改,提高嵌入效率,而且其算法实现简单、计算量小,性能优于其他算法。展开更多
文摘Generally speaking, being an efficient information hiding scheme, what we want to achieve is high embedding capacity of the cover image and high visual quality of the stego image, high visual quality is also called embedding efficiency. This paper mainly studies on the information hiding technology based on gray-scale digital images and especially considers the improvement of embedding capacity and embedding efficiency. For the purpose of that, two algorithms for information hiding were proposed, one is called high capacity of information hiding algorithm (HCIH for short), which achieves high embedding rate, and the other is called high quality of information hiding algorithm (HQIH for short), which realizes high embedding efficiency. The simulation experiments show that our proposed algorithms achieve better performance.
文摘嵌入效率高和隐藏信息量大的信息隐藏算法,已成为信息安全领域研究的一个热点。通过对该类信息隐藏算法的分析,提出了一种高效率的随机分块信息隐藏算法ERS(an Efficient high payload and Ran-domly selected sub-blocks image Steganography)。实验与分析结果表明:该算法不仅能够减小对载体的修改,提高嵌入效率,而且其算法实现简单、计算量小,性能优于其他算法。
