Region-based lossless data hiding with high capacity for medical images
Academic paper|更新时间:2024-06-05
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Region-based lossless data hiding with high capacity for medical images
Journal on CommunicationsVol. 36, Issue 1, Pages: 189-198(2015)
作者机构:
1. 江西理工大学 应用科学学院,江西 赣州 341000
2. 中南大学 信息科学与工程学院,湖南 长沙 410083
3. 中南大学 移动医疗实验室,湖南 长沙410083
作者简介:
基金信息:
The National Natural Science Foundation of China(61103202);The National Natural Science Foundation of China(61272494);The Natural Science Foundation of Jiangxi Province(20122BAB201045);Research Project of Jiangxi University of Science &Technology(jxxj12149)
Xiao-hong DENG, Zhi-gang CHEN, Di-qing LIANG, et al. Region-based lossless data hiding with high capacity for medical images[J]. Journal on Communications, 2015, 36(1): 189-198.
DOI:
Xiao-hong DENG, Zhi-gang CHEN, Di-qing LIANG, et al. Region-based lossless data hiding with high capacity for medical images[J]. Journal on Communications, 2015, 36(1): 189-198. DOI: 10.11959/j.issn.1000-436x.2015021.
Region-based lossless data hiding with high capacity for medical images
In view of the significant regional features of medical images
a new high capacity lossless data hiding method based on region and histogram shifting was presented.Firstly
the presented method utilized segmentation method of the maximum class separation distance to get the foreground region of medical images
and then used the polymeric polygonal approximation and image fitting algorithm to get the embedding region of region foreground.In the embedding procedure
the difference histogram circular shifting method and the code-based histogram shifting method were presented to embed hidden data in foreground and background region respectively
which improved the limit embedding capacity and resolved the overflow and underflow in traditional histogram shifting method.Experimental results show that the proposed method achieves high embedding capacity with 1 bit/pixel and stego-image quality about 40 dB.The presented method can be applied to the quality of sensitive image's large capacity information hiding with regional feature.
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references
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