Blind detection of digital forgery image based on the local entropy of the gradient

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Abstract

A novel method based on the local entropy of the gradient is proposed to detect the forged digital images. The method can discover some traces of artificial feather operation, which is necessary to create a smooth transition between a forged image region and its surroundings. The local entropy of the gradient is used to determine the forged region, and the credibility is computed to show the reality level of the image. Results of experiments on several forged images demonstrate the effectiveness of the algorithm.

Original languageEnglish
Title of host publicationDigital Watermarking - 7th International Workshop, IWDW 2008, Selected Papers
Pages161-169
Number of pages9
DOIs
StatePublished - 2009
Event7th International Workshop on Digital Watermarking, IWDW 2008 - Busan, Korea, Republic of
Duration: 10 Nov 200812 Nov 2008

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume5450 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference7th International Workshop on Digital Watermarking, IWDW 2008
Country/TerritoryKorea, Republic of
CityBusan
Period10/11/0812/11/08

Keywords

  • Feather operation
  • Forged digital images
  • The credibility
  • The gradient
  • The local entropy

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