Chinese Journal of Network and Information Security ›› 2017, Vol. 3 ›› Issue (7): 47-52.doi: 10.11959/j.issn.2096-109x.2017.00168

• Papers • Previous Articles     Next Articles

Fragile watermarking technique for detecting image

Yu-hong CHANG,Hui-fen HUANG,Zhi-hong WANG   

  1. Shandong Yingcai University,Jinan 250014,China
  • Revised:2017-03-22 Online:2017-07-01 Published:2017-08-01
  • Supported by:
    The Key R &D Technology Development Foundation of Shandong Province(61402271);The National Natural Science Foundation of China(2015GGX101012);The National Natural Science Foundation of China(2016GGX101037);The Natural Science Foundation of Shandong Province(ZR2015JL023);The Natural Science Foundation of Shandong Province(ZR2015FL025);The Natural Science Foundation of Shandong Province(ZR2016FM34);The Natural Science Foundation of Shandong Province(ZR2016FQ23);The Social Science Planning Project of Shandong Province(15CXWJ08);High Education Research Project of Shandong Province(J15LN54);High Education Research Project of Shandong Province(J16LN55)

Abstract:

Aiming at the problem of image tampering and forensic localization,a fragile watermarking algorithm based on chaos sequence and image QR decomposition was proposed to determine the image tampering.The algorithm chooses QR decomposition to decompose the image,embeds the watermark after the image is decomposed,and encrypts the watermark by chaotic system to enhance the security of the watermark.Experimental results show that the algorithm not only improves the security of the location watermarking algorithm,but also can estimate the tampering strength of the tampered area.

Key words: fragile watermarking, chaos, QR decomposition, tamper

CLC Number: 

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