We open Nicole Kidman picture ,we select the layer on hair then using the magnetic tool select the hair , save the selection, then click on back ground , secect a colour using a bucket.
Adjust colour. Remove colour to make it B/wexcept the select one which is colour .Save it in jpg. save in Web. We save our picture as jpeg.
Open Nicole Kidman, Select her hair. Save the selection.
Select->load selection and pick.