A Review on Digital Image Forgeries

With the mushroom growth of state of the art digital image and video manipulations tools, establishing the authenticity of multimedia content has become a challenging issue. This undermines our trust in images and, in particular, questions pictures as evidence for real-world events. In this context, here we analyze different forms of photograph manipulations to create a new, fake photograph. Digital image forensics is an increasingly growing research field that symbolizes a never ending struggle against forgery and tampering. This review attempts to cover different techniques that have been proposed for exposing digital image forgeries.