Cloud Timelapse

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One of my more recent hobbies has been making timelapses of clouds. I like to think that someday I'll use these videos as reference material for several of my games, like Mehve, but for now I'm content to just enjoy them as cool videos.

To make a timelapse, I have a Raspberry Pi connected to a fixed webcam looking out the window. The Pi is running a simple python script I wrote that takes the sequence of images in the timelapse, and saves them to a prespecified location—a very large hard drive in my case. For recording images, I generally use an exponentially weighted moving average over all previous images, which helps smooth out noise in the output image. I then have a second python script which stitches the images together into a video for playback.

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