Create a green screen or chroma key effect - Remove-a-color feature in Camtasia for Mac 2.1
Camtasia, the video and screencast editor for OS X, has been updated with two useful new features: remove color, and adjust clip speed.
Remove
color means you can use basic “green screen” or “chroma key” effects in
your video. Shoot your footage with a plain background of a single
color, and you and remove that background and replace it with something
more useful in post production. In Camtasia, that means drag-and-dropping the effect on to the section of your timeline you wish to edit, then using a simple color picker to select what color you want removed.
Another
new effect lets you adjust the playback speed of a single clip, or
section of a clip, in your footage. You can adjust both ways, applying a
slow-mo effect to interesting stuff, or a super-fast skip-through the
less interesting parts of your screencast.
Both of the new features were among those that had been requested by existing users, said developers TechSmith.
Camtasia usually costs $99 for an individual license, or $50 to upgrade from version 1.x, but you can download a free 30 day trial version from here. If there’s no way you’re going to spend that kind of money, TechSmith’s lower budget SnagIt application is a lot cheaper and provides simple screencast recording tools for most basic needs.
Or,
for ultimate simplicity, you could just record a screencast with the
software that comes with your Mac. Open up QuickTime Player, and click
on File, then New Movie Recording. OK, so it won’t give you the bells
and whistles that you get in something like Camtasia, but in many
circumstances it will be sufficient.
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