Erm...Throw you out for venting about that? That seems a little bit over the top. I'd be homeless a long time ago if I was thrown out for venting.
Just talk to her and tell her that you didn't think it was funny and how you felt about it. I have no problem confronting my mom about something she did that I didn't like. Of course, don't approach her angrily but explain the situation with poise.
Either way, this generation is no stranger to people taking pictures of themselves. It's really not weird or funny that you were taking pictures of yourself by yourself.

@Harajukukiki: My mom has threaten to throw me out for not sweeping up cat food when she told me to, because I was rude to her, and for drinking a bottle of water too loudly. However, after I calmed down some last night, I was able to talk to her.

@Angelfire: I still plan on taking the photo, but the lighting in my room is really terrible, especially because I have yellow walls (not my choice). It just kind of turns everything yellow and does terrible things to my skin.

The talk went well. She said she was sorry. She threatens to throw me out over such little things, because she knows I have no place to go. I can't afford it with the bills I have. She pulled this stuff when I was younger, and that's why I went to live with my father when they got divorced. I'd still be living with him, except he'll have been dead 3yrs next Wednesday.