Thread

1. tristanj · 1789527436 · focus · HN ↗

   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 monitor. Paint the inside of the box using Vantablack (stopping reflections) and cover the LiDAR projector with tape.

   I can't wait to see Apple Verified™ photos of UFOs flying over the Golden Gate Bridge.

   1. rlt · 1789580464 · focus · HN ↗

      "As part of developing the secure digital negative, PCC computes a confidence score that assesses whether the image has the physical characteristics expected of raw output from our camera sensors. Before the developed reference image is signed, PCC sends the photo GUID, sensor ID, and this confidence score to a companion service, which records them and updates the running score associated with that sensor."

      I wouldn't be surprised if it's also possible to detect the differences between a photo of a real scene and a photo of a monitor or printout displaying a photo of a real scene, given they have the raw sensor output.

      Not sure if they're doing anything like that.

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