User:Cristinac/SIFT
From XPUB & Lens-Based wiki
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
