vegas 4.0 chroma key problem ?

Discussion in 'Amateur Video Production' started by marks542004, Dec 31, 2004.

  1. marks542004

    marks542004 Guest

    Another stupid question.

    I have downloaded the trial version of Vegas Studio 4 and am quite
    impressed with its features.

    My specific problem is a halo appearance around an actor that was
    overlayed on a background using the chroma-key effect.

    It would be ok for a home movie but I need to do it a bit better.

    If this was a paint application I would create a mask - shrink it a
    little and apply to get a nice crisp edge.

    Any suggestions ?

    Also the specs for the app indicate it only does 16 bit color. I am
    used to dealing with 24 or 32 bit color. The test files I have produced
    look fine on the computer monitor. Can anyone clarify this ?
    marks542004, Dec 31, 2004
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  2. marks542004

    david.mccall Guest

    DV is very difficult for chroma keying because of the heavy compression.
    If you with a less than perfect image, it will never look good. This is one
    area where Betacam is clearly superior to DV.

    There is a program/plug-in that is suposed to do pretty well with good DV.
    I think it was Ultra from $545.00
    Then there's Ultimatte, but it is a little more
    david.mccall, Dec 31, 2004
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  3. marks542004

    marks542004 Guest

    Thanks for the comment.

    To clarify I am working with an mpeg file 320 x 240 in size.
    This is being done for a website and client wanted it sized up for a
    DVD sales promotion.

    I have requested the camera tapes so it can be recaptured at full

    I had hoped there might be an edge filter or something to clean it up a

    It is also a dark green dress on a green screen background that looks
    like it was wadded up in a cupboard for a few years.

    I never had to deal with chroma key work before. I could do it by
    extracting every frame, creating masks and reassembling them but life
    is way to short.

    marks542004, Dec 31, 2004
  4. marks542004

    david.mccall Guest

    Whoa, that's even worse than trying to pull a matte from DV.
    Aftereffects has a choke that allows shrinking or stretching
    a matte, it also has animated vector masks that can be used
    to do the frame by frame thing. I know what you mean though,
    I had to remove the color from 2 boys walking down the street.
    You would think you could set some key frames and then just
    let Aftereffects tween the rest, but no, I wound up tweaking the
    mask for nearly every frame.

    Does it have to get blown up to full frame? Perhaps it could be
    in a mortise with accompanying text.

    Pulling a clean matte with a badly wrinkled background would
    be pretty much impossible. How about a plan B.

    david.mccall, Dec 31, 2004
  5. marks542004

    marks542004 Guest

    I converted the source mpeg to an uncompressed avi.

    Then bringing it in to Vegas 4 and using chroma key has given me a
    better result.

    I think I can now get a satisfactory result for the web image (using a
    brighter background than planned) and will simply not do a DVD unless
    I can get the actual camera tape recaptured.

    I am really impressed with Vegas 4 after having used Movie Maker . I
    would love extra video tracks but just not in the budget for now.
    marks542004, Dec 31, 2004
  6. marks542004

    Mike Kujbida Guest

    Try Vegas Movie Studio instead.
    Only $100 at (and
    can be upgraded to Vegas when you have the money). Probably less in retail

    Mike Kujbida, Dec 31, 2004
  7. I am really impressed with Vegas 4 after having used Movie Maker . I
    Huh ? Vegas 4 has unlimited tracks. Newer version 5 just adds 3D track
    For your keying needs, know that you can use more than one instance of the
    chroma key filter/fx.

    Craig H.
    HighPeaksVideo, Dec 31, 2004
  8. marks542004

    marks542004 Guest

    Sorry, my mistake

    when I refer to Vegas 4.0 that I downloaded a trial version of I meant
    Vegas Movie Studio 4.0 (retail about $99)

    Since I was considering Pinnacle Studio 9 av/dv package I have decided
    to buy the Vegas Movie Studio 4 and plan on upgrading to Vegas 5 a
    little later.

    Using an AVI file for the chroma key made a big difference to the
    output. I was a little concerned at converting formats but the final
    clip looks good.
    marks542004, Dec 31, 2004
  9. marks542004

    david.mccall Guest


    david.mccall, Jan 1, 2005
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