Turn any photo into a dot grid artwork with these Photoshop actions. You'll get great results with dots that change size. They get larger in brighter areas and smaller in darker areas. Free download available.

Step 4
The light streaks will be created from the light areas in this layer. Use the Brush tool (B) and paint over the areas that you do not want any streaks to be generated from. If there are any light sources that's clipped off by the edge of the image, erase those light sources. If they're not removed, the final result will show light streaks with clipped edges.

Step 5
Change the blending mode to Screen.

Creating the Light Streaks
Now that we have the light sources identify, we can use it to create the light streaks. The streaks will be created by duplicating the layer and moving it one pixel at a time. This might send shivers down your spine; don't worry, it'll be easy and fun. Really!
One comment on “Exposure Blur”
This is really cool.