This is my first tutorial, for use in Macromedia Fireworks. If you can translate it to use in whatever program you use, congratulations..

we'll be going from
this   to this
in 7 steps

Step 1: Import your base picture. Crop and place to your own liking, if you’re just practicing, you’re welcome to use the image that I’m demonstrating with

Step 2: Duplicate your base layer, set to screen at 81% and lock your layer, no further adjustments need to be made

Step 3: Using the Vector Shape tool, draw a square 100x100 pixels and fill it with #000033, set to Exclusion and change its opacity to 54%, lock the layer

Step 4: Sharpen your base layer using your filters

Step 5: Using the Colour Fill filter set the fill colour to be #CC0000 and set the blend mode to Saturation and set the opacity to 52%

Step 6: Using the Curves filter, under Adjust Colour, drop down the top menu and select Green and input the following numbers: Input: 5 Output: 10

Step 7: Drop down the menu again and select Blue, input the following numbers: Input: 10 Output 10

You’re now done!

There will be minor adjustments on the amount of opacity needed and the input and output of curves depending on your image, the trick is to just fiddle around slightly with different settings until you get the look you want!

and here is another example of using this tutorial