Method partially based on the excellent work described in:
 Dong, Chengbo, et al. "MVSS-Net: Multi-View Multi-Scale Supervised Networks for Image Manipulation Detection." IEEE Transactions on Pattern Analysis and Machine Intelligence (2022).  Wu, Yue, Wael AbdAlmageed, and Premkumar Natarajan. "Mantra-net: Manipulation tracing network for detection and localization of image forgeries with anomalous features." Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition. 2019.  Islam, Ashraful, et al. "Doa-gan: Dual-order attentive generative adversarial network for image copy-move forgery detection and localization." Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition. 2020.
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