Pixilation with Chromakey Green/Remove A Color

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  • Updated 6 years ago
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I am trying out the "Remove-a-Color" feature for Camtasia Studio for Windows. 

Below are screen shots of the video I recorded and edited. I used the "Print Screen" function in Windows to capture these screen shots.

The screen shots are in the following order: 
  1. The first is the .MTS format that I imported directly from my camera,
  2. The second is the .MP4 format after I converted the original MTS video file, 
  3. the third is after using "Remove-a-Color" in Camtasia.

If you compare the 1st and 3rd screenshots, the third screenshot has a green halo and the video looks pixilated

I converted the video from MTS to MP4 in order to to import it into Camtasia Studio, ...Camtasia doesn't seem to accept MTS files.


How can I eliminate the green halo and pixilation? Do I need to use a different file format, other than MP4? Any other tips?

I just want a simple setup that looks clean and professional.

Setup/Additional Info: 

Just to as an experiment, I used a single light to illuminate my left side.The light is in front of me, to the left and at an angle of about 45 degrees. It is a single 250W, 3200K incandescent bulb without a diffuser. I'm standing about 2 feet from the backdrop which is chromakey green muslin. 

I have 3 light sources. 

I plan to setup the backdrop and lights in an area with more space, so I can add distance between different parts of my setup. 

Original MTS


MP4 with Remove-A-Color

Photo of leymane123


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Posted 6 years ago

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Photo of Rick Stone

Rick Stone

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Hi there

I think this is where the additional features of the Remove A Color come into play. You likely need to tweak the Tolerance/Softness and Defringe a bit.

Cheers... Rick :)
Photo of leymane123


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Below are my results, based your suggestion. There is still a green ring around the edge of the the figure....Would this have anything to do with my lighting setup? 

By the way, the first program I used to convert the video to MP4, was only outputting a resolution of 640x480. I found another program that outputs 1920x1080, which did improve the image quality. 

I'm not expecting "magic" but the Techsmith's video tutorial on how to use the Remove-A-Color had pretty good results. 

Let me know if there are any other settings or variables I should check. 

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kayakman, Champion

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to me, it looks like your green background cloth is the problem; it does not appear to be flat, and it looks like it may have other colors woven in [?]; this gives it multiple colors in the video; remove a color only acts on a single color

suggest you try again with a better background
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John S. Richards

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Two Tips.

1. To convert AVCHD MTS video files to MP4 for editing in Camtasia only use Randy's method here:

2. Green Screen
Have 3 to 4 feet or more, between green screen & talent.
Light green screen independently from talent.
No light from green screen should reflect on talent.
Keep screen wrinkle free.
Top & Backlight talent.

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