How can I get the official IANA Image Media Type (if any) of a binary stream? I'd like to avoid trusting to file extensions and vague guesses when handling images. Preferably some command using common tools like ImageMagick's
identify, or some programming language if necessary.
Call it with:
Note that it's not 100% accurate - I don't think anything can be theoretically.
If you want to do that in code, there's