B&W photoshop effects?

Anyone here know how to take a picture and use a program like photoshop or GIMP to make a picture all Black and white except for a single object?

 

It's really easy:

Create a new file with 2 layers with the photograph

Make the lower layer black and white (you can do so by lowering the saturation to 0)

Go to the upper layer and erase the parts around the colored object using the appropriate air brush

 

Thanks, I just did it actually.

 

trippy picture.... it looks like you did more than simply change something to b/w

 

The newest member of the Blue Man Group??

Great photo effects. I'm impressed!

 

very interesting image you made there