How do I extract jpeg images out of my Avi

[lost]

Hi guys I am a little lost here but I feel I am somewhat close but I need your help.
I am trying to extract and save as .jpgs the images that make up this AVI. I am attempting to do this using cmd running under administrator, something of which I know absolutely nil about.
This is what i have got so far
"C:\Program Files\VideoLAN\VLC\VLC.exe" "F:\My Videos\Jess 21st montage\Jessica's 21st.avi"--video-filter=scene--vout=dummy--start-time=1--stop-time=5--scene-ratio=1--scene-prefix=img---scene-path="F:\My Videos\Jess 21st montage\jpegs from avi"\ vlc://quit

This is a movie that was originally made up from a collection of .jpg photos but I now need this output in the order contained within the movie.
All that happens is that VLC flashes open on the screen and closes down in a millisecond or so when I hit enter in the cmd window.
Is anybody able to point out the error of my ways in the above string?
Any help will be very much appreciated as I have been trying to figure this out all over Easter and it is now driving me crazyyyyyy.
Thanks in advance
Lost

[Jean-Baptiste Kempf]

Set the scene preferences in the preferences, and not in command line.

[lost]

Thank you Jean-Baptiste I have already tried setting those in preferences but it does not work. I just tried trimming out the scene preferences in the above cmd string and the same thing happens. VLC flashes open and closed in an millisecond.
I need some more precise advice on how to adjust the cmd string to the correct language as I do not have experience in this at all?? I nam trying to batch extract all these jpgs in one operation.
So if you can help further or if anyone can help please chime in.
Hoping for a positive result
Kindest regards but still Lost