[Tell HN]: I built a web app for image forensic analysis. Thoughts?

14 points by pgr 16y ago ↗ HN

I made something cool, and I just wanted to share it.

There was an article submitted here last month, about forensic analysis of a recent Victoria's Secret photo (Discussion here: http://news.ycombinator.com/item?id=1017726)

It raised my interest, and I thought it was a great article. HN User slig made a quite comment about how some parts of it would be pretty easy to implement as a 'web app'. Turns out he was right. I read up on the theory in the linked research paper, and here is the result of a few days work:

http://www.errorlevelanalysis.com

Any thoughts or suggestions, I'd love to hear them.

6 comments

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pgr 16y ago ↗

And as a clickable links: http://www.errorlevelanalysis.com + http://news.ycombinator.com/item?id=1017726

joshu 16y ago ↗

I like it, but would like to see something more general.

Copy-move detection would be neat: http://www.lemonodor.com/archives/2008/02/protecting_journal...

pgr 16y ago ↗

Oh, cool. I'd seen that before but I was unaware that the source code had been posted. Thank you for the link.

olalonde 16y ago ↗

Cool project ! Care to open source your error level analysis implementation ? I'm curious of how complex it is.

pgr 16y ago ↗

Sure, here is a link: http://errorlevelanalysis.com/source/

pbhjpbhj 16y ago ↗

If the theory is correct, on a cursory glance I'm not convinced, then could you not do a quick analysis to give a numeric likelihood of the image having been tampered with?