Illuminant colour based image forensics

Abstract

Detecting forgery in digital images is one of the major research activities in the current time. We propose a method to find the forgery in digital images by exploiting colour mismatches among the objects in the image. While creating a composite image from a number of images, it becomes hard to match the colour of one object with reference to the other. In the proposed method, the colour mismatch is decided by estimating the illuminant colour of different objects in the image.