automatically improve video quality (something like Youtube implemented, but local)

[Quotenfrau]

Hi

If you upload a video that’s shaky or dark, we’ll automatically offer to fix it for you, creating an updated version of your video on YouTube.

http://youtube-global.blogspot.mx/2012/03/improving-video-awesomeness-with-one.html

Does some local software offer similar function?

 

[simsaladimbamba]

Do you mean image stabilisation and colour correction with one click?
Can't iMovie help, though it does need more than one click?