I promise I’ll show something physical one of these days. This video is a modification of the sobel edge detection method below, except for this time I’m taking advantage of the fact that the algorithm actually knows the edge direction to produce vector normals whose length corresponds to the strength of the vector. I’ve also added some ability to change the vector length multiplier and threshold so you can get different effects. This is katy’s favorite thus far.
Next I’m going to try to add frame differencing so that I can get it to do this only when sensing motion…