Pixelation in Chroma key (remove color.)

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I have just experimented with Chroma Key, (remove color) in Camtasia Studio 8.1. I seem to be getting the hang of it but I have noticed pixelation in my my background. I have tried tweaking the settings but can't get rid of it. Any suggestions?
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Steve

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Posted 6 years ago

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kurrykid, Champion

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A picture or a video would be nice to see exactly what you are describing.

The biggest thing with Chromakeying is lighting. If it's perfect, you can get a perfect key. If not, you will struggling to get all the "artifacts" off the screen. If it's the background, it could be the shadow coming from the talent? Try standing a little further from the green screen and see if that helps.

Please post a screen print of video so we can see what's happening.

Dave
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Steve

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Here's a capture from the video. As said, this is the first one I have made so I know it's far from perfect.

As the background I was using a light blue wall. I have a green background on order but I was just testing the new feature in the program. As far as lighting goes, I was using one photo flood directly pointed, but far enough back to defuse the light somewhat. (I have more lights but was just too lazy to set it all up for a test video.) And I was at least 3.5 feet from the wall so as to keep the shadow softened.

I also found out from experimenting that an 18% studio grey background does NOT work very well at all.

I suspect your guess about the lighting is probably correct though.

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kurrykid, Champion

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Thanks Steve...Try lighting the wall as well (with a separate light). That may help a lot.
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Steve

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Thanks. I was thinking this was the issue. I'll wait until my green screen arrives and retest. The blue is fine but I am limited on background space.

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