can be done in several ways,
1. Color balance
2. Selektive color
3. Variationsuch as one of the following ways:
as shown in the picture
color change can be done with a click tubnail image. by conducting appropriate air repeatedly desired color ..... to keep if the color does not fit before doing the copy editing can be done for the security layer.
for further stages, could use some layer masking and blending, to get a better color and color as we want.
as in photo processing becoming a pop of color (or a lot of people who mention color soft)
====for more tutorials can be opened in http://rumah-j.blogspot.com/ ====