Student ID photos

Hey I just took mine on my phone. Think they mean in the style of a passport photo, so blank background, face is clear. I don’t think it matters what you wear in the picture. Hope this helps

How would I take one ? I mean the course I’m taking at Portsmouth Uni ( BSc Hons Accounting with Finance ) has no dress code. So can I just wear anything ? & where would I take the photo ? Like is it okay to take it at home, just as long as their’s no objects or people ? Or do I need it to be like a passport photo ?

Portsmouth say (at https://myport.port.ac.uk/welcome/joining-the-university):
"You will need to be able to upload a good quality passport photo as part of this process" ("this process" being completion of the online registration form). I suspect that they will provide information at this point as to what is/isn't acceptable.
The reality, I suspect, is that they want a passport-style photo -- but they will be forgiving if you submit a photo that doesn't meet all the standards that the Passport Office require. For example, I'm sure they won't reject a photo just because you're smiling, or the background isn't completely plain.
The key thing is that you upload a photo that's recognisably you, and that it's easy to check that it's your card when someone needs to do it -- and that's probably going to be (1) when it's first issued to you, and (2) when you're using it as proof of identity when you're sitting exams.