Journal of Applied Sciences ›› 2018, Vol. 36 ›› Issue (2): 220-236.doi: 10.3969/j.issn.0255-8297.2018.02.002

• Special Issue: Information Security of Multimedia Contents • Previous Articles     Next Articles

Reversible Information Hiding Method in Encrypted Image Based on Surface Interpolation

CHEN Yan1, YU Chun-qiang1,3, HOU Xiao-jie1,3, ZHANG Xian-quan1,2,3, TANG Zhen-jun2, HE Nan4   

  1. 1. Network Information Center, Guangxi Normal University, Guilin 541004, Guangxi Province, China;
    2. Guangxi Key Lab of Multi-source Information Mining of Security, Guangxi Normal University, Guilin 541004, Guangxi Province, China;
    3. Guangxi Colleges and Universities Key Laboratory of Cloud and Complex Systems, Guilin University of Electronic Technology, Guilin 541004, Guangxi Province, China;
    4. Network and Educational Technology Center, Guilin Normal College, Guilin 541004, Guangxi Province, China
  • Received:2018-02-01 Online:2018-03-31 Published:2018-03-31

Abstract:

This paper proposes a reversible information hiding method for encrypted images by means of surface interpolation. An original image is encrypted frstly, then a random function is used for obtaining the cover pixels in the encrypted image. Different hiding methods are adopted in accordance with the different inverted bits in the cover pixels. The stego-image is decrypted and the cover pixels are obtained. In the 5×5 neighborhood of a cover pixel, six non-cover pixels which are closet to the cover pixel are selected. Then surface interpolation is applied to calculate the predicted value of the cover pixel. The predicted value is used for extracting secret data and recovering the original pixel. The experimental results indicate that this method performs with a lower error rate in secret data extraction and a higher visual quality in image recovery.

Key words: prediction value, image encryption, surface interpolation, reversible information hiding

CLC Number: