I have recently put a lot of work into the feature extraction system of GNU gift, locally.
I have modified gift-add-collection.pl to accept .fts files dropped manually into gifts $home. I have re-written extract_features to take advantage of automatic vectorization in GCC4.1, thereby using SSE2 instructions to get a real-world speedup of 2X. oh, and i dropped the custom image file handling routines, and used netpbm. I'd like to contribute these patches back to mainline, but i'm noting a certain lack of activity. ;) i'd like someone to take a look at my gift-add-collection modifications, before just commiting them, and my work on the feature extractor is basically a complete fork. EVERYTHING was touched. both tools have been tested to make sure every result is the same as mainline. the only difference is now that i've decoupled the two tools, you can run the extractor on EG a 100 node cluster, then use gift-add-collection.pl to finalize the result. oh, and the SSE2 optimized version of the program.. if you compile it without the right compiler and right compiler options.. takes TWO TIMES the time of your program. so deciding to use this version is a issue to think about. i'll arrange a location for downloading, as soon as i get some kind of response to my mail. ;) Julia Longtin <[EMAIL PROTECTED]> _______________________________________________ help-GIFT mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-gift
