Transparent background HOW?

[africano]

Hi,

I have seen an example of a video of someone talking on top of their business card. So, when it is scanned with an app (augmented reality) it trigger the video to play and the video has a transparent background. This means that the person appears to be standing in the business card.

I have videoed in front of a green screen but I cant figure out how to export the video with NO background....at the moment I have either the video with green screen behind or with a black background after exporting from greenscreen app.

Can someone help??

Thanks (I have been assured that it is easy....and that a tutorial is coming but I want to figure it out first!)

Thanks!

 

[dorsal]

The black background is your alpha channel. You need to combine that file with your business card file. Many apps can do it.
Such as this for iMovie:

 

[BeechFlyer]

I cant figure out how to export the video with NO background....at the moment I have either the video with green screen behind or with a black background after exporting from greenscreen app.

You need to export the green-screened clip using a codec that supports the alpha channel (i.e. transparency). Many codecs don't, that's why you end up with a black background instead. Try ProRes4444; it creates large files but handles alpha well. If that doesn't work, try the Animation codec.

Also, if you get a choice between "Millions of Colors" and "Millions of Colors+", choose the latter.

I hope this helps!

 

[africano]

You need to export the green-screened clip using a codec that supports the alpha channel (i.e. transparency). Many codecs don't, that's why you end up with a black background instead. Try ProRes4444; it creates large files but handles alpha well. If that doesn't work, try the Animation codec.

Also, if you get a choice between "Millions of Colors" and "Millions of Colors+", choose the latter.

I hope this helps!

Thanks for the replies....but need further clarification....at this point I have recorded the video and saved from GreenScreen App.

My video has a black background (after exporting from GreenScreen App). Now what do I do.....What program do I use?

Thanks.

 

[africano]

No idea??

 

[BeechFlyer]

I don't know the app you are using. What export options does it give you, in terms of codec and other settings?

The fact that you are seeing a black background (instead of transparency) suggests that you need to export it differently. Again, ProRes 4444 is your friend. But without knowing what options your app supports, I don't know what else to tell you.

Have you contacted the app's support?