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Experts can still spot these clues -- for now. How much longer before better tools can create altered images/videos that correct for all these defects? Aligning
by ams6110 9y ago
Experts can still spot these clues -- for now. How much longer before better tools can create altered images/videos that correct for all these defects? Aligning shadows/reflections seems like something that software should be able to do.
I think that within the decade, photo/video "evidence" will be something that can be legitimately questioned unless there's some kind of cryptographic proof that it hasn't been altered. Cameras will need to "sign" their images, perhaps?
- acomjean 9y agoCanon (probably others) have "verification kits" for using digital photography as evidence. This is to verify images haven't been tweaked after the fact. Not sure exactly how it works, but canon at least seems to require the high end 1 series cameras, presumably signing the images.. from the press release: "The kit consists of a dedicated SM (secure mobile) card reader/writer and verification software. When the appropriate function (Personal Function 31) on the EOS-1D Mark II or EOS-1Ds is activated, a code based on the image contents is generated and appended to the image. When the image is viewed, the data verification software determines the code for the image and compares it with the attached code. If the image contents have been manipulated in any way, the codes will not match and the image cannot be verified as the original." https://www.dpreview.com/articles/3146736527/canondvke2 https://www.dpreview.com/articles/3146736527/canondvke2
- weavie 9y agoSurely an easy work around would be to take the picture, doctor it, print it out, point the camera at the print out and snap.
- zzo38computer 9y agoNot sufficient; you will also need to worry about timestamps.
- pvaldes 9y agoAnd with the printer resolution matching the camera