I'm new in Ruby, please help me out with this.....

I want to implement some gesture input (e.g. eviacam ) by using web cam
as an input device and imitate mouse event to give a command to os. Is
there any possible to done it with Ruby programming.  I know there's
lots of open source in c/c++, but I got my own reason to choose Ruby.
Please give me some advices.

Any comments are welcome,
Thanks in advance....
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