Trying to make black transparent, and export with alpha.

Forum|Forum|1 year ago
December 20, 2024
2 replies
361 views

Hi,

Apologies for not getting the terminology correct here. I have a short looping clip of some Christmass Holly. The centre of the image is black, and I would like to make the black be transparent and export that to use in a media server on top of another layer.

Exporting isn't a problem, I'm just not sure how best to make the balck transparent. I have been experimenting with Set Matte, and Alpha From Lightness. This works to a degree but is also makling my green holly transparrent. Can anyone point me in the right direction?

Thanks!

How to

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T

tamseel_2394

Participating Frequently

Use a Luma Key or Color Key effect to make the black background transparent. Adjust thresholds to avoid affecting the green holly, and export with an alpha-supported format like ProRes 4444.

P

Philip27463971xr7cAuthor

Known Participant

Thank you.

P

Philip27463971xr7cAuthor

Known Participant

I can't seem to edit my first post. Just wanted to say that I realise that my green Holly has black levels in itand so is obviously going to also become transparrent. Does that mean that I would have to try and use a mask instead?

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