Light Painting (Composition by dust)
here is a simple feedback based light painting example. it is made to emulate the effect of opening up your exposure on a camera. you will want to mess with the feedback level and after image life settings to paint. results will vary with room lighting and what not. this is a simple example.
you may want blend the original image with the feedback image based on motion detection or something. or maybe threshold and blur the feedback image and use it as mask with the original image to get more clear image where the streaks are not. as it is the effect is applied to the image as a whole.
if you get a white screen when you open just back the level off till you see your self then bump it back up and start painting with a lighter or led.
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