Tech,Space,Gaming, and Science Fiction News to wet your whistle
Adobe is using AI to catch Photoshopped images
Get link
Facebook
X
Pinterest
Email
Other Apps
While picture editors have tweaked images for decades, modern tools like Adobe Photoshop let them alter photos to the point of complete fabrication. Think of sharks swimming in the streets of New Jersey after Hurricane Sandy, or someone flying a "where's my damn dinner?" banner over a women's march. Those images were fake, but clever manipulation can trick news outlets and social media users into thinking they're real. By the time we figure out that they're phony, bombastic pictures can go viral and it's nearly impossible to let everyone know the image they shared is a sham.
Adobe, certainly aware of how complicit its software is in the creation of fake news images, is working on artificial intelligence that can spot the markers of phony photos. In other words, the maker of Photoshop is tapping into machine learning to find out if someone has Photoshopped an image.
Using AI to find fake images is a way for Adobe to help "increase trust and authenticity in digital media," the company says. That brings it in line with the likes of Facebook and Google, which have stepped up their efforts to fight fake news.
Whenever someone alters an image, unless they are pixel perfect in their work, they always leave behind indicators that the photo is modified. Metadata and watermarks can help determine a source image, and forensics can probe factors like lighting, noise distribution and edges on the pixel level to find inconsistencies. If a color is slightly off, for instance, forensic tools can flag it. But Adobe wagers that it could employ AI to find telltale signs of manipulation faster and more reliably.
The AI looks for three types of manipulation: cloning, splicing and removal. Cloning (or copy-move) is when objects are copied or moved within an image, such as parts of a crowd duplicated to make it seem like there are more people in a scene. Splicing is where someone smushes together aspects of two different images, like the aforementioned sharks, which were grabbed from one photo and blended into another showing flooded streets. Removal is self-explanatory.
As is typical with machine learning methods, the Adobe team, along with University of Maryland researchers, fed the AI tens of thousands of phony images to teach it what to look for. The team trained the AI to figure out the type of manipulation used on an image and to flag the area of a photo that someone changed. The AI can do this in seconds, Adobe says.
The AI uses a pair of techniques to hunt for artifacts. It looks for changes to the red, green and blue color values of pixels. It also examines noise, the random variations of color and brightness caused by a camera's sensor or software manipulations. Those noise patterns are often unique to cameras or photos, so the AI can pick up on inconsistencies, especially in spliced images.
Adobe notes these techniques are not perfect, though they "provide more possibility and more options for managing the impact of digital manipulation, and they potentially answer questions of authenticity more effectively." The research team says it might harness the AI to examine other types of artifacts, like those caused by compression when a file is saved repeatedly.
Still, there could be a long way to go before this AI becomes a viable product. Photoshop is unquestionably a great tool for touching up images and creating memorable art, but people have used it to poison the well of legitimate, newsworthy photos, and it seems Adobe wants to offer a stronger antidote.
By Liam McCabe This post was done in partnership with Wirecutter . When readers choose to buy Wirecutter's independently chosen editorial picks, it may earn affiliate commissions that support its work. Read the full article here . After six summers of researching, testing, and recommending window air conditioners, we've learned that quiet and affordable ACs make most people the happiest—and we think the LG LW8016ER will fit the bill in most rooms. This 8,000 Btu unit cools as efficiently and effectively as any model with an equal Btu rating, and runs at a lower volume and deeper pitch than others at this price. Little extra features like a fresh-air vent, two-axis fan blades, and a removable drain plug help set it apart, too. The LG LW8016ER is a top choice for an office or den, and some people will find it quiet enough for a bedroom, too. If our main pic...
It's official. Sprint is definitely giving away free unlimited LTE data through 2018 to those who use laptops packing Qualcomm's Snapdragon 835 processor. We first learned of this last month , and the announcement today clarifies which devices qualify. If you own or buy the HP Envy X2 , ASUS NovaGo or Lenovo Miix 630 , you'll be able to get free unlimited data if you sign up for AutoPay with the carrier. This won't cover devices using the new Snapdragon 850 chipset , although that's not available in an actual computer yet, and we'll possibly hear more later this year. Always-available data connectivity is perhaps the biggest selling point of Windows on Snapdragon devices, which promise gigabit LTE speeds wherever you are. While it would be nice to see other carriers offer similar deals, just to have an alternative option, this offer makes these...
ASUS may well have pulled out of the Android smartwatch market after its ZenWatch 3 , but it's actually not quite done yet with wearables. At Computex, the company made a little surprise by unveiling the VivoWatch BP, which is a follow-up to the original low-power VivoWatch from three years ago. We're looking at a handful of new features and improvements here, with the main highlight being the built-in blood pressure monitor -- a rare feature in the smartwatch category. The only other recent direct competitor is the Omron HeartGuide , which is also due to lau nch later this year. The VivoWatch BP won't be winning praises for its appearance. While the previously monochromatic high-reflective display has now gained some colors, it's also gained a much thicker bezel to accommodate extra sensors on the front. The screen is positioned i...
Comments
Post a Comment