Re: [help-GIFT] Features Extraction

[Epa Uwimana]

Dear Dr. David,

I am interested in features for each image. I remember reading from one
literature that you extract around 7800 features per image and I was
wondering if there is a way I can extract these from the .fts.
I received one perl script from Dr. Muller and the script doesn't seem
to work correctly. Do you have the script that he mentioned you can send
to the list?

Thanks Dr. David

Epa Uwimana

Quoting Epa Uwimana <address@hidden>:

> 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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> > http://lists.gnu.org/mailman/listinfo/help-gift
> > 
> > 
> 
> 
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