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Cygwin & binary files

By Terry Biscane - Aug. 01, 2008

The general problem is this: I have some binaries and I don't know what to do with them! I've downloaded some binaries (if it helps they are in http://www.robots.ox.ac.uk/~vgg/research/affine/detectors.html

it is the first folder of the updates, the one that says ""Harris&Hessian (also Windows)"") which I need for a project. Anyway, it says there that I need cygwin, so I install it on my Windows XP. And that's where it all stops. On the folder mentioned above there is an application for windows which I run, but does nothing. In a readme file also contained in it, it says ""./extract_features.ln -harhes -i img.png -sift -pca harhessift.basis"" , so I type this in cygwin but says ""no such file or directory"", then I try to change the path, but I can't. The concept is that we have an image and through that binary, an ASCII file with some features of the image is produced, but I can't get that to work. Anyway, sorry for my messy question, but my mind is all messed up, after all this search for this.

Thanks for your help.


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  1. By Stan Dupont on Aug. 01, 2008

    Well, I can see two problems here. Firstly, you could have unpacked it so the file is missing executable rights. Try to do a full list:


    ls -l


    See if ""x"" shows in file permissions.


    Secondly, on my system utility ""file"" reports it is a Linux executable, which, to my knowledge, will not run under cygwin. See for yourself:


    Nikola@computer01 ~

    $ file detect_points.ln

    detect_points.ln: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.2.0, statically linked, not stripped


    Nikola@computer01 ~

    $ file /usr/bin/file

    /usr/bin/file.exe: MS-DOS executable PE for MS Windows (console) Intel 80386 32-bit


    There is a difference between something compiled for Cygwin (the ""file"" command itself) and Linux.


    In other words, I don't expect it to run.


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  2. By cnshirui on Aug. 28, 2008

    run setup.ext in the downloaded folder


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