solved Green screen

[HAKAN BERGMARK]

How do i put a background on e video filmed in front of a green screen?

[Uberprutser]

I've never done that, but I suspect you need to put the background on track one. And you green screen footage on track two. Next you need to make the green colour transparent with an fx and something like that should work

[borate]

http://help.nchsoftware.com/help/en/videopad/win/tasks_chromakey.html

The subject, on track two (or a higher track) must be high contrast to its background, and not contain the background color.

[Nationalsolo]

Hi

• Place the background video on Video Track 1
• Place the green screened video on Video Track 2
• Click the FX button of the Green screen video on Track 2
• Add the Green Screen effect
• Click the colour square and use the pipette to pick the green screen (background)  colour from the Clip preview or Sequence Preview. This selects the exact shade which will become transparent in the clip. (In fact you can pick ANY colour on the screen)
• Use the Feathering/Threshold/Fading controls to clean up the outline of the subject in the green screen clip

Here is a typical green screen image....

By choosing this green with the color picker pipette the background becomes transparent and the figure is seen against the clip on Video track 1 ; in this example, a landscape.......

Note that the subject  of your  clip should not have any "green" in it or that also will become transparent. Also note that green is traditionally used as it is not normally present in skin colour. In practice you can use any colour not present in the subject

Even if the background contains  shades of green that differ from the shade actually picked......

... the Threshold setting can be carefully adjusted to render these areas transparent as well. For example you may have used a green cloth to shoot your subject against that has creases or perhaps a green or blue painted brick wall with similar changes of shade. The Threshold setting will remove these shade differences or brick pattern.

Nat