基於預測差異擴張法之可逆資料隱藏技術之研究

Study on Reversible Data Hiding Schemes based on Prediction-Error-Expansion Techniques

姚雅心(Ya-Shin Yao)

指導教授 ： 吳信龍 ； 張仁俊

國立臺北大學/電機資訊學院/資訊工程學系/碩士(2014年)

摘要

於本論文中，我們重新探討基於預測差異擴張法技術之可逆的資料隱藏技術。近期，Li等人提出一個新的預測差異擴張法技術，使用它去建構一個高品質可逆的資料隱藏方法。然而，他們提出方法的隱藏容量都不是相當高。為了提高容量，可以直接使用多層嵌入的方式增加容量，但卻會造成大量圖形品質降級。
在我們的論文當中，我們先提出一般化之預測差異擴張方法，我們稱為S-max、S-min演算法。用這兩個演算法，我們可以簡單地刻畫Li等人提出的預測差異擴張方法。為了防止Li等人提出的方法在多層運行中降級，我們也提出了Max-Min-Min-Max的運作概念，運用在資料隱藏上的技術。
最後，實驗結果將展現出我們提出的方法比起Li等人提出的兩層嵌入方法可獲得更多的藏量與更高的圖形品質。

關鍵字

預測差異擴張 ； 可逆式 ； 資訊隱藏

並列摘要

We revisit reversible data hiding schemes based on prediction-error-expansion techniques. Recently, in Signal Processing, Li, Li, Li, and Yang proposed a new prediction-error-expansion technique and used it to construct a high-fidelity reversible data embedding scheme. However, the embedding capacity of their proposed scheme is not high. Directly applying multi-pass embedding increases the embedding capacity but results in a large of image degradation.
In this paper, we generalize the prediction-error-expansion technique proposed by Li, Li, Li, and Yang. Then, we use the generalized schemes to characterize their proposed data embedding scheme. In order to prevent the image degradation due to applying two-pass embedding, we propose a novel data embedding scheme which is a combination of our proposed generalized data embedding schemes.
Finally, experimental results show our proposed scheme obtains higher embedding capacity and image quality than the two-pass embedding scheme proposed by Li, Li, Li, and Yang.

並列關鍵字

Prediction-Error-Expansion ； Reversible ； Data hiding

參考文獻

W. Hong, T.S. Chen, and C.W. Shiu. “Reversible data hiding for high quality images using modification of prediction errors.” Journal of Systems and Software, Vol.82 (11), pages 1833-1842, 1999.

X. Li, B. Yang, and T. Zeng.“ Efficient reversible watermarking based on adaptive prediction-error expansion and pixel selection.

”IEEE Transactions on Image Processing,Vol.20(12),pages 3524-3533, 2011.

X. Li, J. Li, B. Li, and B. Yang. “High-fidelity reversible data hiding scheme based on pixel-value-ordering and prediction-error expansion” Signal Processing, Vol.93, pages 198-205, 2013.

Z. Ni. Y. Shi, N. Ansari, and S. Wei. Chung“Reversible data hiding” IEEE Transaction on Circuits and Systems for Video Technology,Vol.16,No.3,pages 354-362,March 2006.