Semi-Blind Image Resampling Factor Estimation for PRNU Computation

Abstract

Fast track article for IS&T International Symposium on Electronic Imaging 2020: Media Watermarking, Security, and Forensics proceedings.

Replacing DWT with DTCWT in blind image rotation angle estimation

“…Under the assumption that the background is without rotation and the forged region may have been rotated during forgery, the forged region can be revealed. In [14], LP is used for resampling factor estimation given at least one original image is available to provide the reference LP. In [8], Goljan translates the rotation angle estimation problem to maximization of the LP energy over a range of inverse rotation angles.…”