Posts Tagged ‘nealkrawetz’

Forensics Analyst Claims That the World Press Photo Winner is a Composite

worldpressphoto2013

Dr. Neal Krawetz, a computer science PhD who specializes in non-classical computer forensics, online profiling, and computer security, made some pretty damning claims in a blog post recently. After taking a close look at Paul Hansen World Press Photo 2012 winner (seen above), he concluded that it was “a digital composite that was significantly reworked.” Read more…

Can You Tell the Difference Between Phone Photos and DSLR Photos?

CNN recently published a pop-quiz with 10 photos and a simple question: was the photo taken with a phone or DSLR? The test is meant to open the public’s eyes to the fact that phone cameras are getting to be just as good as expensive DSLRs. It’s misleading though, and Neal Krawetz over at Hacker Factor has a great explanation as to why:

The implied rational is that, with the correct technique, you can take pictures on your cellphone that are just as good as an expensive SLR. However, they do it by showing you thumbnail images that were created using Photoshop. At thumbnail size, even crappy pictures will look good.

Next time, CNN should do a speed comparison between a bike and a car… while they’re both at a standstill.

Phone or Fancy Camera [The Hacker Factor Blog]

Amazing Reuters Photo of Rebel Firing RPG was Not Photoshopped

Earlier this week, a Reuters photograph showing a Libyan rebel firing an RPG caused a stir after people on a number of sites suggested that it might have been Photoshopped. Well, it turns out the photo is 100% real — not only did Reuters confirm this with us, but forensic expert Neal Krawetz arrived at the same conclusion after analyzing the image:

By using a suite of analysis methods, it becomes extremely difficult for a fake image to pass unnoticed. While an intentional forgery might pass one or two tests, it takes a level of skill that most photographers and amateur graphic artists lack. This picture easily passes every test (including a whole slew that I didn’t include here). I have no reason to question the authenticity of this picture.

Typically, amazing photos come about through digital modifications. However in this case, Anis Mili has truly captured an amazing photo. And he did it without using a crutch like Photoshop.

You should definitely give Krawetz’s blog post a read — it’s an interesting look at image forensics.

Without a Crutch [The Hacker Factor Blog]