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Quick example:
h(n) : transfer function
x(n) : signal
linear convolution:
y(n)=Σh(n-k)*x(k) ; from 0 to N-1
circular convolution
y(n)=Σh[(n-k) mod N]*x(k) ; from 0 to N-1
mikroc versus css
It depends of what you want to do with the microcontroller.
Personally, i think that Mikroc is the best for the beginner because it's the more user-friendly. There is a very good help manual with complete examples (hard and code).
But it will not compile as efficiently as...
The difference is that your signal in circular convolution is periodic.
For example, when you apply a filter with circular convolution, you do not have the same borders effects.
I'm afraid it is not possible to just translate Matlab to C code.
In fact the Matltlab Compiler Toolbox is just a false compiler which permits you to have a *.exe but you have to install on the computer the Matlab library (150 MB).
And the 'compiled' program runs slower...
Re: X ray Image Detection
If the forms of the objects you want to find is simple (rectangular, not rotated), you should try to work in separated dimension. First try to find them horizontally, en then vertically.
Median filter in a rather good thing if you want to get rid of the noise without...
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