FotoForensics is one of these websites that can help us to solve another problem with the photos we see on the internet. Even if we are members of a photographic jury and have doubts that the correctness of a picture can really be useful. Let’s see how FotoForensics works to find manipulated images.
Imagine the situation. Family dinners or dinners with friends who are ready among the guests. In the conversation that circulates through the networks, a photo is displayed … You just have to download it and analyze it with FotoForensics. At the moment and with a little practice, you can know if the photo is real or is lying. And so it’s easier to move on to another, more interesting topic …
A lightly trained eye can easily distinguish digital montages. In many cases, however, it is difficult to notice. Recently, a photo of the stars on the pyramids has been circulated, others of the famous red moon … And many people have fallen into the trap. Certainly with FotoForensics doubts will end once and for all.
Some observations before you start
There’s nothing like reading before you start working with FotoForensics . It is a page that serves for research. And therefore, as they themselves warn:
To reiterate: FotoForensics is a research site; the loaded content will be used for research purposes. We will not publicly disclose personal information, and we will not provide information collected to external third parties (such as advertisers and data aggregates). This website does not collect email addresses. It also does not sell content. By uploading an image, you agree that the photograph be viewed by FotoForensics, Hacker Factor and the research partners for purposes related to the analysis. If the images contain illegal or potentially illegal content, site administrators may be required to share the information with the authorities.
I imagine we will not have anything to hide, but we may not want the researchers to have pictures of our children or our personal stories … It depends on each one.
How Fotoforensics works
It can not be easier. We can work from an internet address or upload a file from our hard drives. Once chosen, just give the Upload file button and in just a few seconds the program will return the results. The most spectacular, what is most striking is the Error Level Analysis (ELA) , an algorithm developed by Dr. Neal Krawetz to detect altered images.
- The edges of the objects and their texture must always look the same.
- The edges are highlighted and the textures darker in detail.
- And regardless of the color, the entire photo has the same color. Any significant change in these conditions will be an indicator of image manipulation.