Photos taken by digital cameras are also trackable in a similar way as prints taken from a printer. I recall reading they were trying to identify the device after a Harry Potter book was leaked by someone taking digital photographs.
To be clear, this is not about EXIF data (which is its own problem).
Digital cameras can be fingerprinted from the images they produce, due to variations between pixels in any given sensor. If you’re concerned about an image being traced back to your camera, you might consider some post-processing before distributing it.
That’s the obvious one. But you can also add data to images by adding tiny values to the pixels, it’ll still look the same to us (same as printer tiny dots).
I don’t know if phones actually do this. Just saying it’s possible.
But many uploading sites optimize the images, so it’ll be gone on reshare, but they could get it on first upload.
Photos taken by digital cameras are also trackable in a similar way as prints taken from a printer. I recall reading they were trying to identify the device after a Harry Potter book was leaked by someone taking digital photographs.
Was it just EXIF information or was it something embedded in the pixels? If it’s just EXIF that’s something you can scrub from the file easily.
To be clear, this is not about EXIF data (which is its own problem).
Digital cameras can be fingerprinted from the images they produce, due to variations between pixels in any given sensor. If you’re concerned about an image being traced back to your camera, you might consider some post-processing before distributing it.
There was a post not long ago about fingerprinting lense aberrations as a unique id. Idk how practical it is though?
Youre talking about img metadata right? With the right tool you can strip images out of them
That’s the obvious one. But you can also add data to images by adding tiny values to the pixels, it’ll still look the same to us (same as printer tiny dots).
I don’t know if phones actually do this. Just saying it’s possible.
But many uploading sites optimize the images, so it’ll be gone on reshare, but they could get it on first upload.
That’s steganography.