1 |  | Open the image for editing. |
2 |  | Duplicate the current layer (Ctrl+J) twice. |
3 |  | Change the blending mode of the top layer to Screen and the middle layer to Difference. |
4 |  | With the middle layer selected, apply a Neon Glow filter (Filter> Artistic> Neon Glow) with the following properties: Glow Size: 5 Glow Brightness: 15 Glow Color: Blue |
5 |  | Select the top layer and use the Levels tool (Ctrl+L) to apply the following properties: Input Levels: 0, 0.1, 255 |
6 |  | Rollover the image to see the image without this Photoshop technique applied. |
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