How to do Selective Desaturation (Selective Black and White) in video?

Discussion in 'Amateur Video Production' started by Sheldon, May 8, 2007.

  1. Sheldon

    Sheldon Guest

    I recently saw an promotional video on the Apple website for Final Cut
    and during the showing of its features showed a taxi cab SELECTIVELY
    colored while the background was black and white. Upon my recent
    search for this I couldn't find anything pertaining to this on the
    web, per selective desaturation is mostly a photo techinque. Anyway
    have some information on this, since that has a GREAT potential in
    different applications.

    I am currently using Sony Vegas 7.0 + DVD, so it would help if you can
    make it applicable to this program. Thanks!
     
    Sheldon, May 8, 2007
    #1
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  2. Sheldon

    Mike Kujbida Guest



    I'm surprised you couldn't find anything as Vegas has been able to do
    this since version 3 :)
    For details, check out Vol. 1 #11 (doing a Color Pass), Vol. 2 #10
    (Color Pass Reprised - Passing Multiple Colors) and Vol. 3 #4
    (“Pleasantville” Effect) from jetdv's excellent newsletters at
    http://www.jetdv.com/vegas/forum/viewtopic.php?t=54
    Do yourself a favour while your there and download all of them (PDF
    format) as they're an excellent resource/learning tool.

    Mike
     
    Mike Kujbida, May 8, 2007
    #2
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  3. Sheldon

    Sheldon Guest

    Wow. that's a lot of work to do it. What about non linear objects like
    water or fluids, like in the Gatorade commericial. How do you think
    they do that by choosing the liquids colors and sweat, etc. Seems too
    much work for a mask, any other ways to do this?
     
    Sheldon, May 8, 2007
    #3
  4. Sheldon

    Mike Kujbida Guest


    Oh really? 15 years ago I couldn't even dream of doing something like
    that!! Nowadays almost any NLE can do it.


    Just a stab on the dark here but probably a hardware/software combo
    that's a LOT more expensive than you or I could ever afford :-(

    Mike
     
    Mike Kujbida, May 9, 2007
    #4
  5. Sheldon

    Sheldon Guest

    Ouch. I've been searching the web and remarkably little is put out on
    this effect.
     
    Sheldon, May 9, 2007
    #5
  6. Sheldon

    Sheldon Guest

    http://www.animationartist.com/2002/04_apr/news/a52_agorade.htm

    I found out a little about this. That gatorade commerical with colored
    sweat apparently wasn't easy as one two three presto! Wow. Any other
    info anyone?
     
    Sheldon, May 9, 2007
    #6
  7. "Sheldon" wrote ...
    Perhaps you are looking for the easy method. It doesn't exist,
    which is why you can't find it.

    It is quite simple, really. They've been doing it for nearly 100 years.
    Of course creating the traveling matte frame by frame is the tedious
    part, but once that's done, you can do whatever you want with
    selective effects.

    A classic example of where simple and easy are NOT the same.
     
    Richard Crowley, May 9, 2007
    #7
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