Bad Apple, but whenever a pixel changes, it glows for one second instead

Motion is visualized by showing a red pixel on screen for one second if the pixel changed state in the original video. Over one second the pixel changes color and fades. No actual pixels from the original video are shown, just state changes. I published the generation script on my github page, so you can play around with the effect as you wish. github.com/lassethorlepik/pixel-changes-glow-visualizer