Re: Adding and removing images to/from gift

Jonas Lindqvist <[email protected]>
Newsgroups gmane.comp.gnu.gift.general
Message-ID <[email protected]>
>>> - The second thing is matching algorithm. Currently I get the feeling
>>> that my gift is fixed on color more than on shape / texture. sometimes I
>>> get perfect results ( e.g. gift finding all appropriate matches I know
>>> of ) but sometimes it doesn't even show an image it most definitely
>>> should be supposed to. How can I tweak my system to try different
>>> methods or make it more sensitive for shape / texture than color ?
>>>
>>
>> I remember having written a document about configuring and hacking   
>> the gift, which is surely too short, but maybe a starting point.   
>> Have you tried the separate normalisation algorithm or which one   
>> did you use when running the GIFT?
>>
> I tried both Classical IDF and Separate normalisation but to be honest,
> the results did not differ in the least.

Try to fiddle with the parameters to Classical IDF...
:-)

I too have seen that images that I (as a human) sees as pretty much  
identical will not appear to be similar to the GIFT. But I'm quite  
satisfied with the results anyway.

My results got better and better as I added more images. Using just a  
few hundred images, the results were crap. Adding a few thousand made  
it promising. Adding almost a hundred thousand images made the results  
pretty decent, for my purposes.
Color does seem to be an important part of the features though...


/Jonas
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