Chroma key / green screen (background bleed issues)

glenn-l6110 wrote on 6/24/2018, 1:16 PM

Hi,

I'm relatively new to this subject. I'm using Sony Vegas Pro 13. I have taken a simple shot with a green screen with me in front. Then using chroma key function I've managed to remove the background. I've then added another video which I'd like to show behind me. I've sort of managed to get this to work but I can see the background video bleeding through. I'd like it so there's no bleed on my image and a solid video in the background. If you check out you'll see what I'm trying to achieve. Is it the composting mode I need to change (what should it be) or the transparency settings or something else? Apologies for the lack of technical expertise, this is all very new to me.

Any help / suggestions much appreciated.

Kind regards,

Glenn

Comments

Red Prince wrote on 6/24/2018, 4:57 PM

I'd like it so there's no bleed on my image and a solid video in the background.

Despill the foreground (search the web for despilling techniques).

fr0sty wrote on 6/24/2018, 9:19 PM

Your lighting plays a big role, must make sure there are no shadows on the green screen. despilling helps, as mentioned above, and also shooting at the lowest amount of YUV compression possible... 4:4:4 preferred, but 4:2:2 will give you much better results still than the typical 4:2:0. What cameras are you working with?

dxdy wrote on 6/25/2018, 8:32 AM

+1 on importance of lighting. You should have as much light as possible on the actor, without creating a shadow on the green surface. Also, darker clothing is much preferable to light clothing.