Pretty dumb question

So i have CS5 and id like to know how can i take a picture and "paint" it on the screen? I saw someone do it, he had something that seemed like a brush but when he used it a picture appeared.

Probably a dumb question but i just got this and would like to know this :embar:

 

I don't understand what your trying to do. I think you want to open up your image, and click edit -> define brush preset. Then you can brush it around?

 

I could probably help you if you could explain it a little better, if you mean digital painting, you need a graphics tablet.

EDIT:

He's a link which will explain the concept and what you need etc.
http://www.pxleyes.com/tutorial/pho...aintings-Using-Brush-Settings-and-Tablet.html

 

Okay i try to explain a bit better.

You take an image and u have an empty screen on photoshop and then you somehow paint the image on it so it appears little by little while you paint.
Thats how my friend added 2 images next to each other and it just looked cool.

 

IF your using CS5

Hold down brush tool>Mixer Brush Tool

If I understand correctly