Have you ever seen those photographs where the photograph is black & white apart from a certain area
You can see in my photo above how I have made it B&W apart from the centre phone box. In that instance above I used selection tools etc but I have found an easier way.
There is a small programme that will do the work for you called Tintii. Yep weird name but it works well, and you can use the standalone version for free or the filter (that works with photoshop or paintshop) has a small charge and you can download it from
You can also find a review about it on PC World