Robust Evidence Detection of Copy-Rotate-Move Forgery in Image Based on Singular Value Decomposition

A Survey of Partition-Based Techniques for Copy-Move Forgery Detection

“…Other techniques such as the image resizing into a specific scale to reduce the time needed for the detection in [28, 35, 38], the low-pass filtering in [15, 23, 35, 49]; the Gaussian pyramid in [48, 50–52], the degraded palette obtained by decreasing the image details in [53], the integral image in [24], and the conversion to 8-bit gray level followed by a mean filter kernel in [54] also exist in the literature.…”

“…Apart from the color conversion approach, authors in [ 44 – 48 ] used a discrete wavelet transform (DWT) based dimension-reduction preprocessing technique. The latter technique works by applying DWT to the input image and extracting the resulting low-frequency subband that will be used in the remaining steps of the detection procedure.…”

“…The method is robust to noise addition. As for authors in [ 48 ], the difference with [ 11 ] is that the image is preprocessed using Gaussian pyramid before being discrete wavelet transformed to extract the low-frequency subband.…”