I am trying to detect forgeries done after a document is scanned by a scanner.

I already tried to access the metadata, and, if it is edited with any software after scanning, then it is easily detected by the metadata, like exif data, but the metadata can also be forged. I also tried ELA and splicing and a trained neural network model on that, the result of ELA and splicing is best on images that are captured from Camera around 99.98% on Casia-1 and Casia-2 but for scanned documents like Exam result, degree certificate, etc..., a technique(Splicing + NN and ELA +NN) not working.

  • $\begingroup$ What is "ELA" and "splicing"? Also, can you reword this part "but not result up to mark", because it isn't very clear (at least, to me). $\endgroup$
    – nbro
    Jun 3 '20 at 16:53
  • $\begingroup$ sorry, now I added link which explains stuff. thanks. $\endgroup$ Jun 9 '20 at 6:07

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