Passive Framework of Sparse Region Duplication Detection from Digital Images

Table 5

Performance analysis of the proposed CMFD method in the existence of different postprocessing attacks on the tampered images of the KLTCI dataset (values of the performance parameters are in normalized form).

Operation	Translation	Scale+Flip	Rotate+Flip	Illumination change	Blur 33	Blur 5	Average performance
JPEG-80	0.9907	0.9641	0.9701	0.9703	0.9841	0.9516	0.9718
JPEG-100	0.9981	0.9756	0.9812	0.9929	0.9905	0.9737	0.9853
SNR-30	0.9711	0.9251	0.9365	0.9419	0.9406	0.9297	0.9408
SNR-40	0.9957	0.9705	0.9812	0.9834	0.9887	0.9692	0.9814