User:Cristinac/SIFT

SIFT features 



python compare.py pana
http://www.vlfeat.org/man/sift.html

IDF - inverse document frequency (how rare a word is)
it looks for unique features (sift) reduces the sift features to the interesting ones, 
it puts it into an index and then compares them

matchscores.dump

export PATH=$PATH:/Users/cristinacochior/bin

ipython
from bumpy import *
m=load(“pana/matchscores.dump”)
m

(a dump of a two-dimensional array)
m[0,0]


matrix of comparisons between images; looking for matches
graph.png


python graph.py pana


(installing graphviz)


(go into folder where the images are)
mogrify -resize 480x *.jpg
cd ..
python compare.py classroom




git clone https://gitorious.org/pzi-prototyping/the-image-network.git