Q:

best value for fps in createVideoWriter() openCV

I have this camera application that I'm working on which uses openCV for image processing.  I was wondering what is the best value of 'fps' for createVideoWriter() so that the video is closest to the real world timeframe!! 
Regards, Aayush Shrestha. 

A:

30 should be enough.  25 if you need a smaller video.