5 November 2014 Detection for processing history of seam insertion and contrast enhancement
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With the development of manipulations techniques of digital images, digital image forensic technology is becoming more and more necessary. However, the determination of processing history of multi-operation is still a challenge problem. In this paper, we improve the traditional seam insertion algorithm, and propose corresponding detection method. Then an algorithm that focuses on detecting the processing history of seam insertion and contrast enhancement is proposed, which can be widely used in practical image forgery. Based on comprehensive analysis, we have discovered the inherent relationship between seam insertion and contrast enhancement. Different orders of processing make different impacts on images. By using the newly proposed algorithm, both contrast enhancement followed by seam insertion and seam insertion followed by contrast enhancement can be detected correctly. Plenty of experiments have been implemented to prove the accuracy.
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Jianwei Li, Jianwei Li, Yao Zhao, Yao Zhao, Rongrong Ni, Rongrong Ni, "Detection for processing history of seam insertion and contrast enhancement", Proc. SPIE 9273, Optoelectronic Imaging and Multimedia Technology III, 92730V (5 November 2014); doi: 10.1117/12.2071790; https://doi.org/10.1117/12.2071790

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