How to make part of an image black & white

A friend of mine asked me this morning how to keep part of an image colour while making the rest of the image black and white. Easy.

Click below for the full tutorial.

1) Select the image you wish to use. I have chosen this image as there is a nice clearly definable area which could be kept coloured.

2) Using the selection tools in photoshop select the parts you wish to keep coloured. I used the magic wand tool holding the shift button on the keyboard to multi-select.

3) Now inverse your selection Select>inverse (CMD [CTRL] + SHIFT + I)

4) Now add a Hue/Saturation adjustment layer.

5) Lastly, slide the marker on the Saturation bar all the way to the left.

Tip: If you wished to keep the colour of the building and remove the colour of the sign you will follow all the steps apart from inverting the selection. Remember: always select what is easiest for you to select. You can always inverse the selection.