On Photofiltre how do u make a picture black and white with just one color??? ?

Question: On Photofiltre how do u make a picture black and white with just one color!?!?!? !?

I seen a thing on photofiltre!.com but its in french :[ If anyone can explain or show images of how to do it i would be gladd!. i just downloaded it yesterday and I need a little help!. Please!?!?!?!?!?Www@QuestionHome@Com

Best Answer - Chosen by Asker:

for just one coloured item, open image, select with lasso tool, invert selection, desaturate or lower color saturation,
http://www!.flickr!.com/photos/bo_fra/1043!.!.!.

you can edit one item in piknik as well with b&w option, then recolor,
http://www!.flickr!.com/photos/bo_fra/2568!.!.!.

!.!.Www@QuestionHome@Com

You could just go to www!.picnik!.com, they make it very easy!.
By the way, the technique is called selective or partial desaturation!.Www@QuestionHome@Com