FORGERY DETECTION IN DIGITAL IMAGE

Due to the availability of many image editing and processing tools, it is possible to easily change the information represented by a digital image without leaving any obvious traces of tampering. Tampering of digital images has become so easy that it raises questions about integrity/authenticity of...

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Bibliographic Details
Published inInternational journal of advances in engineering and technology Vol. 6; no. 2; p. 995
Main Authors Kadam, Neeta R, Bhalke, D G
Format Journal Article
LanguageEnglish
Published Bareilly I A E T Publishing Company 01.05.2013
Subjects
Availability
Blocking
Copying
Digital imaging
Image detection
Reproduction
Wavelet transforms
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Summary:Due to the availability of many image editing and processing tools, it is possible to easily change the information represented by a digital image without leaving any obvious traces of tampering. Tampering of digital images has become so easy that it raises questions about integrity/authenticity of digital image, so there is a need of a robust and reliable forgery detection method. A specific type of forgery in digital image is known as copy move forgery detection. This is done by copying a block of an image and pasting it on to some other block of the same image. This approach is based on the application of wavelet transform. To achieve this, first, apply wavelet transform to the input image. Then, reduced dimensions of image is divided into an overlapping block of fixed size. Duplicated blocks are identified using phase correlation.
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ISSN:2231-1963
2231-1963