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I am a student who is envolving in a research about robust visual tracking. And these days ,I had met a problem in my study. The teacher gave me a project of matlab code about the research, when I try to run this code, and the program error is as follows:

   ??? Attempt to execute SCRIPT mexLasso as a function:
    F:\L1_Tracking_standard_car\mexLasso.m

    Error in ==> L1Tracking_release at 95
            c = mexLasso(Y(:,i), [A fixT], param);

    Error in ==> demo at 46
    tracking_res    = L1Tracking_release( s_frames, sz_T, n_sample, init_pos,
    res_path, fcdatapts);

When I go to the program tracking, I found that mexLasso function does not exist, Only get an empty mexLasso.m file and a mexLasso.mexw32 files. My OS version is Windows 7 64bit,and the matlab is matlab 7.12.0 r2011a

Does anybody here knows the causes of my problem?

Anymore, I wonder if anybody knows who has the source code of the binary file mexLasso.mexw32.Because I thought that if I can get the source code of the file mexLasso.mexw32,then I could compile its 64 bit version myself.(I doubt that my os could not recognize the .mexw32 file.)

I hope my express clear enough to let you come to help me ,thanks a lot!

ioxxxoi
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3 Answers3

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the function mexLasso comes from the SPAMS toolbox http://www.di.ens.fr/willow/SPAMS/.

You can find the sources there and compile the mex file corresponding to your OS.

Julien Mairal
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I think your analysis is basically correct - mexLasso is intended to be a MEX function, but MATLAB is finding only mexLasso.m which presumably contains help text. Unfortunately, the error you're getting isn't terribly helpful. As I see it, you have two options:

  1. Obtain the source code for mexLasso and recompile on WIN64
  2. Run the WIN32 version of MATLAB on your WIN64 machine
Edric
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First, you need to find mexLasso.cpp file in http://spams-devel.gforge.inria.fr/downloads.html as Marial has already mentioned.

Then you can find and download the recent version of SPAMS. A following stage is just to execute compile.m file on your MATLAB.

Finally you can find mexLasso.mexw64 in the build folder.

Good luck.

nalply
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