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