Thursday, 21 April 2016

Sweet Peas

My wife planted some sweet peas and put them in the conservatory to get started.

I was sorting through my Pi bits and bobs and found the camera module and a project was born.

I made a camera rig from an old bit of wood and a section of bicycle brake cable and used a PoundWorld specs to get the focal length shorter*:

And found the code for the time lapse online here:


and only made slight amendments:

After 11 days I copied the files across with scp and deleted all the files smaller than 150k (the dark night time pics) with this great command:

find . -name "*.jpg" -size -150k -delete

Then it was just a matter of using ffmpeg to make the images into a video. A quick search confirmed that it was possible to do this on filenames organised by dates:

ffmpeg -framerate 5 -pattern_type glob -i '*.jpg' -c:v libx264 -r 30 sweetpea01.mp4

5 images per second, 30fps video and it literally took a few seconds to create this:

All done headless and with the command line.

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