Everything begins with 

"compile_CPPsMAC.m"

==========================1================================
If you are using MAC please note that you need to set proper path to opencv library  (**.dylib).

If you are using PC please note that you need to set proper path to opencv library  (**.lib) and you also put corresponding opencv **.dll in the same directory.

==========================2================================
Open "MatlabToOpenCV.h" comment line3 if you use PC.


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Compile the C++ source by run "compile_CPPsMAC.m".

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You might want to change some non-compatible C function between MAC and PC according to the error message. 
==========================5=================================

IF compile succeed after 4, then you should be able to run the algorithm.

you should be able to run DEMO1.m