Saurabh Agarwal; Satish Chand

Image Forgery Detection using Multi Scale Entropy Filter and Local Phase Quantization

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Author(s)

Saurabh Agarwal ^1,* Satish Chand ¹

1. Dept. of Computer Engineering, Netaji Subhash Institute of Technology, Sector-3, Dwarka, New Delhi, 110078, India

* Corresponding author.

DOI: https://doi.org/10.5815/ijigsp.2015.10.08

Received: 8 May 2015 / Revised: 3 Jul. 2015 / Accepted: 30 Jul. 2015 / Published: 8 Sep. 2015

Index Terms

Image forgery, entropy filter, local phase quantization, splicing

Abstract

Performing digital image forgery is very easy due to highly precise image editing tools. There is a concomitant need to have some mechanism to differentiate between a forged image and the original image. In this paper, we propose a passive image forgery detection method that uses entropy filter and local phase quantization (LPQ) texture operator. The entropy filter generally highlights the boundary of the forged regions. It is due to the fact that the entropy filter provides the randomness of a pixel in its local neighborhood. The LPQ operator provides internal statistics of the image based on the phase information. We apply entropy filter on different sized neighborhoods followed by LPQ operator on the CASIA v1.0, CASIA v2.0 and Columbia image forgery evaluation databases. We consider these databases in our experiments because these are standard databases and have been used in most of the methods. Our method provides promising results on both CASIA databases; however, they are comparable on Columbia database with that of the existing state of the art methods.

Cite This Paper

Saurabh Agarwal, Satish Chand,"Image Forgery Detection using Multi Scale Entropy Filter and Local Phase Quantization", IJIGSP, vol.7, no.10, pp.78-85, 2015. DOI: 10.5815/ijigsp.2015.10.08

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International Journal of Image, Graphics and Signal Processing (IJIGSP)