4 Replies Latest reply on Feb 24, 2010 7:54 AM by Colin Brougham

    Firework video motion???

    thaibinh3n

        Hi all,

        I'm using Adobe Premiere CS4.  I have a short video clip (video motion) of fireworks on black background.  And I wand when insert firework motion into my clip, there is only firework show on my clip (no black background, basically, the firework will display on my clip).  Anyway I can do that?  Thanks for you help.

        • 1. Re: Firework video motion???
          Matt Petersen Level 3

          Try the "colour key" video effect applied to the Fireworks clip, with black as the selected colour (use the dropper as the black probably isn't as black as you think!)

           

          MP

          • 2. Re: Firework video motion???
            thaibinh3n Level 1

              Thanks Matt for your time and excellent answer.

            • 3. Re: Firework video motion???
              the_wine_snob Level 9

              Two things that I would think about doing would be using Keyframes to animate the fixed Effects Motion>Scale and Motion>Position. Also, Opacity. With a large enough "dark field" you can also combine the displays at different sizes and locations. Depending on what is in your original footage, you could even super these over say a skyline shot. You might have to use the Garbage Matte to remove foreground, or background material from your fireworks, but should be able to get things looking very good.

               

              Good luck,

               

              Hunt

              • 4. Re: Firework video motion???
                Colin Brougham Level 6

                Also check out the Remove Matte effect (set to black) that's built into Premiere. You might also have success with the free Unmult plugin from Red Giant. You might have to drop a Levels or Curves effect before these in the effects stack to make the black "more black," as Matt suggested.

                 

                Perhaps even easier, with your fireworks clip stacked above your background in your sequence, swivel down the clip's fixed Opacity effect, and change the blending mode to Screen or Linear Dodge (Add). Many times, this will easily punch out the black in a clip and allow you to superimpose the non-black pixels on a background. Again, a levels change can help to clean up the background before supering the image.