Back to articles
Volume: 30 | Article ID: art00010
Resampling Forgery Detection Using Deep Learning and A-Contrario Analysis
  DOI :  10.2352/ISSN.2470-1173.2018.07.MWSF-212  Published OnlineJanuary 2018

The amount of digital imagery recorded has recently grown exponentially, and with the advancement of software, such as Photoshop or Gimp, it has become easier to manipulate images. However, most images on the internet have not been manipulated and any automated manipulation detection algorithm must carefully control the false alarm rate. In this paper we discuss a method to automatically detect local resampling using deep learning while controlling the false alarm rate using a-contrario analysis. The automated procedure consists of three primary steps. First, resampling features are calculated for image blocks. A deep learning classifier is then used to generate a heatmap that indicates if the image block has been resampled. We expect some of these blocks to be falsely identified as resampled. We use a-contrario hypothesis testing to both identify if the patterns of the manipulated blocks indicate if the image has been tampered with and to localize the manipulation. We demonstrate that this strategy is effective in indicating if an image has been manipulated and localizing the manipulations.

Subject Areas :
Views 34
Downloads 4
 articleview.views 34
 articleview.downloads 4
  Cite this article 

A. Flenner, L. Peterson, J. Bunk, T.M. Mohammed, L. Nataraj, B.S. Manjunath, "Resampling Forgery Detection Using Deep Learning and A-Contrario Analysisin Proc. IS&T Int’l. Symp. on Electronic Imaging: Media Watermarking, Security, and Forensics,  2018,  pp 212-1 - 212-7,

 Copy citation
  Copyright statement 
Copyright © Society for Imaging Science and Technology 2018
Electronic Imaging
Society for Imaging Science and Technology