I have been looking for a new name for the coming webcam/timelapse site I am developing. I ended up getting the domain cronolia.com. I thought it was a reasonable strange name with the 'cron' signifying something about time and the 'olia' as a imaginary place - the place where time slows down or speeds up.
At the moment users are not able contribute by submitting webcams or requiring timelapses, but as I have worked a bit more on the backend this will be possible.
Showing posts with label timelapse. Show all posts
Showing posts with label timelapse. Show all posts
Monday, 6 August 2007
Wednesday, 18 April 2007
Timelapse movies with webcams
Recently I have been interested in using some of those webcams lying around to produce some interesting experience of time.
I started off with the one at home and attached it to our asus wl-500g premium router running linux (through the help of www.openwrt.org). The camera is a Creative Nx Pro, and I don't know if it is the driver or what, but it doesn't stand daylight very well. The images get very white during day. I have succeeded in making timelapse movies out of the resulting still images, but until I find a new camera / change the driver settings it can't be used for outdoor filming.
I will be looking into how I possibly could use a digital camera instead. This would give me much better image quality. More about that later.
Anyway - in the mean time I thought I would have some fun with other peoples webcam pictures. On my account on www.dreamhost.com I have set up different conjobs like this:
This saves one image at noon (in Norway - the server is in the US) from each webcam into separate folders with sequential naming of the files (0.jpg, 1.jpg, 2.jpg etc).
This makes it easy to process the images into movies with ffmpeg like it is done at the motion - wiki:
I will post some results here when there are some interesting movies made.
I started off with the one at home and attached it to our asus wl-500g premium router running linux (through the help of www.openwrt.org). The camera is a Creative Nx Pro, and I don't know if it is the driver or what, but it doesn't stand daylight very well. The images get very white during day. I have succeeded in making timelapse movies out of the resulting still images, but until I find a new camera / change the driver settings it can't be used for outdoor filming.
I will be looking into how I possibly could use a digital camera instead. This would give me much better image quality. More about that later.
Anyway - in the mean time I thought I would have some fun with other peoples webcam pictures. On my account on www.dreamhost.com I have set up different conjobs like this:
crontab -l
0 3 * * * wget http://some_webcam_host/fullsize.jpg -O ~/folder_to_store/$(ls ~/folder_to_store/ | grep ".jpg" -c).jpg > /dev/null 2>&1This saves one image at noon (in Norway - the server is in the US) from each webcam into separate folders with sequential naming of the files (0.jpg, 1.jpg, 2.jpg etc).
This makes it easy to process the images into movies with ffmpeg like it is done at the motion - wiki:
find . -name '*.jpg' -exec cat '{}' ';' | ffmpeg -f mjpeg -s 640x480 -i - -y -r 25 -aspect 4:3 -vcodec mpeg2video -sameq lapse.mpgI will post some results here when there are some interesting movies made.
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