Green screen issue.

ikonix360

Member
I originally had a piece of cardboard I painted black for a background to hide the clutter in the room.

Today I painted it green. The color I used was Krylon Fusion Matte Spanish Moss.

Now in OBS I can set the chroma key filter to HTML: 1c4416. It removes the background just fine, but when I am sitting in my chair in front of the webcam I can't see myself either and I have no green on.

Here's a couple photos showing it.

Normal

1 normal.jpg


Green

1 green.jpg


What am I doing wrong?

I also tried it without the green screen in the background and with the same settings I get picture 2.
 

ikonix360

Member
The only other green paints that Wal Mart had in stock were glossy so I chose the best one I thought would work.

It isn't quite as dark as the photo shows though.

Would the fact I'm using crop/pad have anything to do with it?

Also isn't there a way to do a green screen without an actual green screen?
 

Kraezy

Member
As Rich has said that shade of green is too dark as you'll spill into other natural colors and shadows.

The optimum color for a green screen is
HEX #04F404 / RGB (4, 244, 4)

You can veer off slightly from this and adjust accordingly but anything too dark will spill into other elements in your video capture.
 

Kraezy

Member
You can use pretty much what ever medium you want to provide the green element behind you as long as it's provides the green portion you wish to remove, in accordance to the correct green palette.

Notes: things to avoid are reflective surfaces and/or anything that produces cascading shadows from your lighting sources.
Like yourself I used to use cardboard, with matte paint, until I purchased large photography flat green screens.
 

ikonix360

Member
So if I were to make an image in Microsoft Paint that is green would I be able to add that image to OBS and use it for the green screen or do I just need to get the proper paint?
 

FerretBomb

Active Member
So if I were to make an image in Microsoft Paint that is green would I be able to add that image to OBS and use it for the green screen or do I just need to get the proper paint?
How would using an image work at all?
You need what the CAMERA is actually seeing to have a bright, vibrant green (or blue) in it to be able to pull a clean key.

As a side note, Walmart sells 'project board' for stuff like school science fairs, and one color they offer is a bright lime green that works well. They also sell lime green duct tape so you can tape multiple boards together if you need a larger backdrop (don't use glossy packing tape, I learned that the hard way when I was getting started). They also sell 'kid colors' bedsheet sets, one of them being, you guessed it, a bright lime green. Easy enough to tack up on a wall, or build a cheap frame out of 1" PVC pipe. They even sell just a California King topsheet which is absolutely huge, for around $20 or so.
 

ikonix360

Member
Looks like I got it.

I used Dupli-Color Grabber Green engine enamel.

20210824_145136.jpg


Here's what I got.

11.jpg


22.jpg


Is it exactly 100% perfect? Not quite, but it is very close.
 

konsolenritter

Active Member
Yes. **thumbsup**
Glad you got it. Just as Kraezy said: You've to got the green screen physically behind you. Now you solved it. Cause the chroma key algorithm is bound to the physical resolution of the video material there are splatter and spill at the edges (foreground/background). Thats why there are different controls in that dialog to play with, including a sometimes needed smoothness-providing one.
You're absolutely on the right way.
 
Top