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Re: [help-GIFT] Features Extraction
From: |
Epa Uwimana |
Subject: |
Re: [help-GIFT] Features Extraction |
Date: |
Fri, 24 Nov 2006 18:27:04 -0500 |
Thanks a lot
Epa Uwimana
Quoting David Squire <address@hidden>:
> Epa Uwimana wrote:
> > Hello,
> >
> > I installed gift on my machine and was able to add my collection
> and
> > indexed them but I am running into some problems to extract
> features.
> > Would someone tell me how I can extract features from a specific
> image
> > using GIFT?
>
> You can use the program gift-extract-features that is built and
> installed when you install GIFT. It requires a 256x256 PPM image file
> as
> a parameter on the command line. If your image file is, for example,
> 001.gif, you would do:
>
> >convert -geometry 256x256 001.gif 001.ppm; gift-extract-features
> 001.ppm; rm 001.ppm
>
> This will create a file 001.fts in the same directory, that includes
> the
> extracted features.
>
> > What would be steps to follow for anybody who wants to use GIFT to
> indexing and features extraction only?
>
> The gift-add-collection.pl program extracts features and builds the
> index files for all the images in a directory. If you just want to
> extract features and index using those GIFT components, that is what
> you
> need to use, just as if you were going to use the gift query engine
> as well.
>
> You will need to dig in the source code to understand the format of
> the
> feature and index files.
>
> > Any idea where I can find a new README?
>
> There isn't one.
>
> Regards,
>
> David
>
> --
> Dr. David McG. Squire, Senior Lecturer. On sabbatical in 2006.
> Caulfield School of Information Technology, Monash University,
> Australia
> CRICOS Provider No. 00008C
> http://www.csse.monash.edu.au/~davids/
>
>
>
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