Photoshop

Black & White Conversion using layers

1. Open up the image in Photoshop
2. Create an adjustment layer: (the grey and white circle icon on the bottom of the ‘layers palette.’) Choose "hue saturation" and click OK.
3. Repeat step 2 only this time drag the saturation slider all the way back to -100
4. Go back to the first hue saturation layer- click on the circle opening it up and play with the lightness slider. Now under "edit" you can choose the separate colour channels and change the lightness of each individually.