Using Gimp, or Picassa 2, how do you make a picture Black and White, with a little color?

Question

Like, leaving the eyes or the shirt in color while the rest is black and white.
Does anybody know?

Answer 1

I'm not sure of the Gimp particulars, but this is the kind of thing you do with Masking.
Usually, White areas on a mask layer will let lower layers show.
So create a mask with a hole where the colour item is, then (on the mask layer) reduce colour saturation until you have b&w.