"He took a picture of me" or "he took a picture of mine" which one is correct

I think I'm going to set up a macro, to automatically type **"It depends on the context"** on every post. Please, *please* give the context, when you ask a question like this.

Both are valid but have very different meanings

Both are correct, but they mean different things. "He took a picture of me" = he took a photograph (i.e. with a camera), and I was in it. "He took a picture of mine" = he took (i.e. picked up, stole, took away) a picture that belonged to me.

"He took a picture of me" means either *he photographed me* or, depending on context, *he took [hold of] a picture with me as the subject*. "He took a picture of mine" has the second meaning, but the picture only *belonged to you*, without necessarily having you in it.

Your 2 questions, “me”/mine” & “you”/“yours”, are (probably) just a simple matter of understanding what a possessive pronoun is. The “mine”/“my” or “your” would be followed by a noun, sometimes implied (and not stated directly) through context. I feel like most languages probably have possessive pronouns. As an example, in Spanish, this is like “yo” vs “mi”.

I should just mention that “He took my picture” is another way to say it (someone photographing you)

Context matters. Both sentences could be correct - but they mean two totally different things.

Me, the subject of the photo Mine, ownership/possessive

They mean different things, so you have to provide context.

The two are so different, contextually, , that I would need to understand more about what you’re asking. “He took a picture of me” means he took a picture of you, the person. As in, he pointed a camera at you, took a photo, and now he has a picture of you. you could possibly mean “he took a picture of MY chair/dog/house/kids etc.” In which case, you’d say this: “he took a picture of MY (whatever)” If someone else is talking about him taking a picture of THEIR chair/dog/house/kids etc then you might respond with “yes he also took a picture of mine.” This is accusatory. “He took a picture of mine,” could also mean that he literally, physically removed a picture (a physical object) that belonged to you and so now you no longer have it in your possession. Context is really important here. What is the action he is doing that made you say this?

Both of those are fine sentences. It just depends on context which one you'd use. They mean different things.

It depends. Did he create a photograph?  Then it's "took a photo of me". Did he steal a photograph away from you?  Then he stole a "photo of mine". 

me. (Assuming you mean someone taking a photo.) If "he took a picture of mine", he's stolen my artwork from the wall (for example). Not a normal phrase.