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kimw24437252
kimw24437252
Known Participant
August 2, 2019
Question

Adobe Premiere Green screen - green around moving hand

  • August 2, 2019
  • 9 replies
  • 10092 views

Hi

I'm tried to edit some footage, shot against green screen.  Green screen removed fine but the person talking is very active with his hands causing and area of green to be associated with the motion.  Can anyone advise how I remove this or at least make it less visible?

Many thanks in advance,

Kim

This topic has been closed for replies.

9 replies

Brandon Loshe
Brandon Loshe
Legend
August 15, 2019

Hi Kim,

I love what eikonoklastes did, even took the time to upload an After Effects project with masks, the Keylight (1.2) effect, and Advanced Spill Suppressor effects applied so that you can copy/paste onto your footage! Impressive!

Is it safe to assume that you know how to use dynamic link between Premiere and After Effects?

kimw24437252
kimw24437252Author
Known Participant
August 16, 2019

I agree it's amazingly helpful and very kind! 

I'm really new to filming and also new to After Effects.  I know it has huge capability but I've never had the opportunity or need to use it before now.  Just YouTubing dyamic links.... :-)

kimw24437252
kimw24437252Author
Known Participant
August 6, 2019

Thanks again so much, I honestly can't tell you how helpful you have all been :-)  Just one more bit of advice - I've changed my settings to the following - will these give me much better results?

  • Changed my Bit Rate / Resolution from: 35 Mbps 1920 x 1080 to 50 Mbps 1920 x 1080
  • frame rate from 50i to 25p
  • Make sure my Premiere sequence matches my footage
  • Aim to position my subject three feet from the background
  • Light the green background and subject separately
  • Changed from auto focus to manual focus
  • Gain set to low
  • Manually white balance (just looking into how I do this)
  • Changed shutter speed to 1/50
  • Try vertical shooting...

Is that everything?  Have  I missed anything?

Many thanks in advance!

Kim

    S
    SAFEHARBOR11
    Participating Frequently
    August 6, 2019

    Hi Kim,

    Not familiar with your exact camera - check the manual - but in general, there is usually a WB button that toggles between various presets (Indoor, Outdoor, etc) and MANUAL will be one of the options. Then once in manual WB mode, there is usually another button to SET the WB. What you will do is use something white - a shirt, a piece of paper, etc - and place it where the subject would be, so you are getting the same lighting the subject would get on the white item.

    Zoom in so white item fills the screen, then SET WB. The camera will use the white as a reference to adjust all colors accordingly for best color reproduction. There are special white cards one can purchase for setting WB but a white object/paper has always been good enough for my needs. Even at a wedding I can just use the altar cloth, table cloth at reception, or even the shirt of a busboy (If he sits still long enough, doing this in stealth from afar!).

    Another tip - your camera should have HDMI output - connect that directly to a monitor/display on set so you can better check the focus and quality of what you are shooting, rather than relying on tiny viewfinder or camera LCD.


    Thanks

    Jeff

      R
      rodneyb56060189
      Legend
      August 3, 2019

      the problem is NOT THE shot on green screen.. the problem is the RESULT !

      R
      rodneyb56060189
      Legend
      August 3, 2019

      look at this one more time...

      this is 24 fps 180 deg shutter... figure it out... the people are MOVING.. it is ALL GREEN SCREEN.....

      open your eyes...

      Pan Am - Video scenes and visual effects (Exclusive) - YouTube

      R
      rodneyb56060189
      Legend
      August 3, 2019

      after you drop in your background to the alpha channel ( your mask made from key) you can render it and look at it before exporting..and believe it or not you can actually SEE what is working or not... you can SEE the stuff around this guys hand that is not working....

      What to do ???

      Golly, go back to key ( mask ) and make adjustments via clean black clean white, grow, shrink, pixel range, all sorts of stuff to adjust to get the clean key... yes, it's true !

      Try it and you'll love it.

        R
        rodneyb56060189
        Legend
        August 3, 2019

        R
        rodneyb56060189
        Legend
        August 3, 2019

        Thank you Texas, for clearing that up.

        It might be a good idea to pull a key on a frame that has less motion ( or NO MOTION ) to get the initial key and mask established... then, low and behold, when the stuff that is blurry comes into play it is already separated by the mask and just looks like blurry " hand ", for example... and does not have a bad key around that blur … it's just blurry flesh colored hand.

        ???

        yippee... got that straight !

        thanks !

          R
          rodneyb56060189
          Legend
          August 2, 2019

          I disagree, but I'm using resolve now instead of CS6. Even without going to fusion I could fix that.  24fps is normal so it's not blur, it's the 'key' ( adjustments via simple )

          example....

          animal with all colors ( no green screen ) selected by a 3d qualifier tool.. ( range of color = each blue lines )…

          mask revealed = next image

          basic cleaning of key = image 3...

          If I can do THAT ( using all the colors shared by nice animal and his surrounding... imagine how clean it would be with your green screen !!!

          blur has nothing to do with it...

          AE can do this

          R
          rodneyb56060189
          Legend
          August 2, 2019

          As interesting as this subject is....

          All I can say is, " Thank god the person is frame doesn't have animal ears on his head, and a black nose painted by magic marker with black magic marker lines on cheeks imitating 'whiskers' … and he is not dressed in a skin tight leotard …

          That freaked me out and will give me nightmares for the next week probably.

          Ann Bens
          Community Expert
          Ann BensCommunity Expert
          Community Expert
          August 2, 2019

          Don't think you will be able to fix that: too much motion blur.

          I would settle for a greenish background.

          S
          SAFEHARBOR11
          Participating Frequently
          August 2, 2019

          Please provide a still frame grab showing the issue, perhaps with and without keying applied. Also, do the Sequence Settings match the source video? If you are inadvertently changing the frame rate or something, that can make things worse.

          Thank you

          Jeff

          kimw24437252
          kimw24437252Author
          Known Participant
          August 2, 2019

          Thanks Jeff :-)

          S
          SAFEHARBOR11
          Participating Frequently
          August 2, 2019

          The pics are very helpful. Not all green screens are created equal - yours looks very dark, and a brighter more saturated green is going to work better. I actually use a bright green sheet from a fabric store. Almost a neon green. I also do have a pop-up like yours and it just doesn't work as well. Chroma Keying works off the color value of the pixels and the dark green just doesn't given enough saturation value to the pixels to set them apart from the foreground subject.

          If you look at talent's right shoulder and arm, it's not really a good key, has chunks missing. Just more apparent on the hand due to motion.

          What are the camera recording settings settings, for instance 1080i, 1080p30, 1080p60? And recording to what format, like AVCHD or?? You will get best results recording to a 4:2:2 format versus 4:2:0 which records less color information in the signal. Some cameras will offer both recording modes. What model are you using? You want to at least use the highest quality, highest bitrate record mode you can to give you an edge with the keying.

          One will usually get a better keying result recording progressive (1080p etc) versus interlaced (1080i).

          Of course, lighting is the most important factor in getting a great key result.

          I'd definitely try a different background for starters though. The pop-up is convenient, but that shade of green is not helping you one bit.

          Thanks

          Jeff

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