[IPOL discuss] MATLAB demos

[Miguel Colom]

Dear all,
IPOL is accepting MATLAB demos now.

We're working on writing clear guidelines for the MATLAB source codes  
(accepted toolboxes, style, etc) but meanwhile it's already possible  
to submit MATLAB codes and demos for publication.

This message is only to explain what to do to have a demo executing MATLAB.

The MATLAB code must be compiled. This step is exactly the same as  
what we do for any other compiled language and to do it it suffices to  
write a Makefile which calls mcc (the MATLAB compiler).

For example:
PROG=gauss
all:
	mcc -m ${PROG}.m -a lib -R -nodisplay

The generated binary must be moved to the "bin" directory, as usual.

The compiler generates not only the binary, but also a BASH script  
which calls the binary within the proper environment. You don't need  
to care about what the script does. Think of it as a black box where  
you put your parameters and it executes your program.

The script needs the following parameters, in this order:
1) The MATLAB path
2) The parameters of your algorithm.

The MATLAB path can be obtained from the demo system configuration, by  
calling self.get_MATLAB_path().

For example:
p = self.run_proc(['run_gauss.sh', self.get_MATLAB_path(), 'input_0.png',
                    'output_1.png', str(sigma)])

You need also to configure the path of MATLAB with two new entries in  
demo.conf.
In the production server the configuration is:

# demo paths
demo.extra_path = '/usr/bin:/bin:/wheezy/usr/local/MATLAB'
demo.matlab_path = '/wheezy/usr/local/MATLAB'

You need to put there the right paths corresponding to your MATLAB  
installation.

And you need also to have an updated version of the demo system.
You can download a copy with: git clone  
https://github.com/mcolom/ipolDevel.git
In principle you only need to change the contents of the "lib" directory.

All the best,
Miguel