Locate Tampered Image Region Automatically Based on Inconsistency of ,JPEG Blocking Artifacts
基于JPEG块效应差异的图像篡改区域自动定位

Inconsistency of blocking artifacts is introduced when image regions with different JPEG quality factors or grids are spliced for forgery.A novel image forgery detection method was proposed to automatically locate the tampered regions.The compression noise was firstly extracted from the images using a wavelet-based denoising filter.The proposed method measured the JPEG blocking artifact using the compression noise to improve the SNR.Then an appropriate threshold was found using an iterative method to separa...