Method of blind image forensics based on Lambert-Phong model

Abstract

Since the illumination model used in existing methods of blind image forensics could not effectively represent surface lighting effects,Lambert-Phong illumination model was proposed which contained the diffusing and specular reflection of light.Leveraging this illumination model on the tampering detection of infinite light source image,the experimental results show that the illumination direction of different objects in images could be calculated accurately using the proposed illumination model,and the image tampering could be effectively identified.