Software used: Photoshop CS4 Time taken: 10 minutes

Step 1: Create a new layer

Open your image and in the layers box double click on the image you've just opened and rename it. After this, create a new layer (Layer>New>Layer) and rename it 'colour'.

Make sure the layer you've created is selected and pick the Paintbrush tool. Make sure the colour you want to use, in this case green, is selected at the bottom of the toolbox (if it isn't, double click on the front square to pick the colour you need) then you want to paint over the the item you want to change the colour of. When you get near to the edges change the size of the brush and use the magnifying tool to zoom in to help stop spill. You also need to make sure you paint over the entire object evenly.

Step 3: Change the blend mode

Once you've finished you'll notice the new colour doesn't look very convincing. To rectify this go into the layers palette and change the blend mode from 'normal' to 'hue' or 'colour' (use the one which you think looks the best). By doing this, the colour you've just applied will now be on the object you wanted to change the colour of.

Step 4: Erase tool

In some areas your colour may have spilled over. If so, select the erase tool and still on the colour layer, go around removing all of the unwanted colour. Use the magnifying tool to zoom in if needs be.

Once you're happy, zoom back out to see your finished image.

You've read the article, now go take some fantastic images. You can then upload the pictures, plus any advice and suggestions you have into the dedicated Photo Month forum for everyone at ePHOTOzine to enjoy.