How to Remove Green Screen in TechSmith Camtasia.
Record your subject in front of a backdrop consisting of a single colour, then apply the effect Remove a Color, and finally replace the background with other material. This technique is often referred to as chromakey or green screen.
To access the Visual Effects tab, click here.
Visual Effects tab
Simply drag the Remove a Color effect onto the material in the timeline, and it will be applied.
Take away one of the Color effects.
To access the properties, you need to click the button labelled Properties.
To remove a colour from the media that is currently shown on the canvas, go to the properties tab, choose the Color dropdown, and then click the Eyedropper button.
Use the colour picker to choose colours on the canvas.
In order to continue customising the colour removal, make adjustments to the following properties:
Take away one of the Color characteristics.
Tolerance: By dragging the slider to the left or right, you may expand or contract the range of tints and hues available for the currently chosen colour.
Softness Allows you to smooth out pixelation and jagged colour edges surrounding the topic by dragging the slider to the right.
Defringe: Move the slider to the left or right to reduce the visibility of any colours that are still present.
Hue: By using the slider, you may change the hue of the clip so that it more closely matches a different backdrop.
Select "Invert" to undo the process of colour removal and conceal all content other than the colour that was removed.
Simply dragging fresh material into the track underneath the clip that has been altered will give you a new backdrop to work with.