From the surface of the photo, can you tell whether it is developed or printed?

There are printed ink-jet particles on the surface of the photo (which can be seen clearly with a magnifying glass), and the transparency of printing is not as good as that of printing. The surface of printed photos is transparent latex film, and printed photos are sometimes covered with transparent film and then coated with film, which is very different from the latex film of printing paper. Because printed matter can also be covered with film, the difference between printed matter and printed matter can only be from the granularity.