Color Accent using photoshop


1. Open your Image and duplicate your image layer on your layers palette.
2. Be sure that the top layer (duplicate) is selected
3. Go to Image>Adjustments>Desaturate. 
4. With your duplicate layer selected, use the eraser tool to remove the image parts you want to be colored
5. If you are satisfied with your color accents, you merge the layers together (CTRL E) or simple save as JPG.