Apple doesn't address the modified photo replay situation, where you take a picture of an already edited image. Photoshop / AI-gen an image -> display on a high-resolution monitor -> photograph the monitor with iPhone 18 Pro -> valid Apple Reference image. To get valid reference photos, you can go to the actual physical location, put the iPhone/monitor in a cardboard box to block external light, then photograph the m…
> Paint the inside of the box using Vantablack But you're only allowed to do that if your name if Anish Kapoor
Apple Reference Image: A New Approach for Verified Photography
361–364 of 364 posts
Re: Apple Reference Image: A New Approach for Verified Photography
#362> Modern cameras rely on sophisticated image-processing algorithms to produce the final viewable image, so certifying that an image accurately reflects what a real camera sensor captured requires a chain of trust covering the sensor as well as the computational photography software that interpreted the capture. So if you jailbreak or root your phone what happens? Is this a trojan horse into making rooted phone camera…
Re: Apple Reference Image: A New Approach for Verified Photography
#363Earlier quoted context omitted.
Claim 7 in this patent application describes how depth sensors are used as part of an image authentication process, which would make such a workaround more difficult: https://image-ppubs.uspto.gov/dirsearch-public/print/downloa... The Apple Reference Image feature is here launched on iPhone 18 Pro and iPhone 18 Pro Max that both have built-in LiDAR sensors that could be used for this process.
Apple's current implementation doesn't integrate LiDAR. And LiDAR wouldn't be enough here, it's trivial to block the projector and hide the dot pattern. No dot pattern = iPhone thinks the object is far away, which is what happens in landscape photos. A better fix is to take photos with all three iPhone cameras simultaneously, ideally as a 2-3s video, and use the parallax/multiple perspectives to extract depth informa…
Re: Apple Reference Image: A New Approach for Verified Photography
#364My comment on this idea from 9 years ago: https://news.ycombinator.com/item?id=16291641 First reply was exactly the same as most of the top-level comments here today: "That doesn’t prove anything. Make your fake video, point your phone camera at it, record." Of course, I'm sure someone else had thought of something along these lines in the 90s, I just didn't have a citation to hand.