World Press Photo says it has confirmed the veracity of an award-winning photograph of a Gaza funeral.

Bloggers had raised doubts earlier this week about the veracity of Paul Hansen’s photograph, claiming the winner of the World Press Photo of the Year 2012 had significantly altered the original image.

But following an investigation by  Dartmouth computer science professor Hany Farid and Kevin Connor, CEO of Fourandsix Technologies, WPP said the image had been confirmed as authentic.

“We have reviewed the RAW image, as supplied by World Press Photo, and the resulting published JPEG image,” Farid and Connor concluded, according to a statement posted on WPP’s website Tuesday. “It is clear that the published photo was retouched with respect to both global and local color and tone. Beyond this, however, we find no evidence of significant photo manipulation or compositing.”

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