How to make a time lapse with Ubuntu Natty

[Rosscopico]

After much reading, experimentation & gnashing of teeth, I finally figured this out!

1. Record video as .png to minimise pixelation (inserting directory & frame rate into following
command run from Ubuntu terminal)
cvlc v4l2:// :v4l2­dev="/dev/video0" –video­filter=scene ­­scene­format=png ­­scene­
ratio=<n> ­­scene­prefix=snap –scene­path=/home/ross/<directory> v4l2:// vlc://quit

2. Use GPRename to change the file names to sequential numbers, take care to keep the .png
extension.

3. Navigate to directory & use mogrify to change format to jpeg, from the Ubuntu terminal with the following command
mogrify ­format jpg *.png

4. You will now have the original png files as well as the jpg files. Create a directory for the png
files & move them. Navigate to directory
mv *.png ~/<new directory for png>

5. Use AviDemux to stitch images back together as a movie.
Open 1st frame, In VIDEO dropdown box select desired output ( I chose mpeg4), then in VIDEO menu bar, select desired
frame rate. Now save as an avi

6. Play video. Check frame rate is correct. If necessary, use AviDemux again with a different frame
rate.

[Rosscopico]

I found that recording as a jpg gave me pixelation, so went with the png, then changed the format later on