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.
or just the individual characteristics and flaws of the lens/sensor/postprocessing software, some of which can be unique per device, and potentially comparable to other photos made with it.
Any image editing tool like mspaint or similar. Just copy paste the pixels into a new image file. Though, the program youre using will probably still add it’s own metadata to the new file, but all the original metadata from the camera won’t be there.
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.
EXIF data?
https://en.wikipedia.org/wiki/Exif
Exif data. It can be removed with various apps but its in photos by default on most devices
or just the individual characteristics and flaws of the lens/sensor/postprocessing software, some of which can be unique per device, and potentially comparable to other photos made with it.
Youre talking about img metadata right? With the right tool you can strip images out of them
Any image editing tool like mspaint or similar. Just copy paste the pixels into a new image file. Though, the program youre using will probably still add it’s own metadata to the new file, but all the original metadata from the camera won’t be there.
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.