Image Splicing Detection, Localization and Attribution via JPEG Primary Quantization Matrix Estimation and Clustering. (arXiv:2102.01439v2 [eess.IV] UPDATED)

Detection of inconsistencies of double JPEG artefacts across different image
regions is often used to detect local image manipulations, like image splicing,
and to localize them. In this paper, we move one step further, proposing an
end-to-end system that, in addition to detecting and localizing spliced
regions, can also distinguish regions coming from different donor images. We
assume that both the spliced regions and the background image have undergone a
double JPEG compression, and use a local estimate of the …

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