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Asked: 2026-05-13T05:28:57+00:00

I’m trying to run a program originally tested on Matlab 6.5 on a new

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I’m trying to run a program originally tested on Matlab 6.5 on a new release (R2009a)
The program uses some mex files, and I get the following error when trying to run it:

??? Invalid MEX-file ‘/normalizedCut/common_files/sparsifyc.mexglx’:
normalizedCut/common_files/sparsifyc.mexglx: symbol mxGetIr, version
libmx.INTERNAL not defined in file libmx.so with link time reference.

(the code I’m trying to tun is Normalized cut by Shi & Malic, and can be found here:
http://www.cis.upenn.edu/~jshi/software/files/NcutClustering_7.zip)

If I try to run the code on the same system but Matlab 2007a it runs ok.

Is there some problem with backwards compatibility for 2009a?
Are there any flags somewhere in the system I can change to help it work?

When I googled it I saw some references to the LD_LIBRARY_PATH env variable, but what exactly should be added to it I could not find out.

Thanks,
Yair

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1 Answer

  1. Editorial Team

    The source code for those mex functions appears to be available in the “Image segmentation with normalized cuts” source on this page: http://www.cis.upenn.edu/~jshi/software/ (in the specific_NcutImage_files subdirectory in the unpacked .zip)

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