This code implements the algorithms described in

Image Matching using Local Symmetry Features
by Daniel Cabrini Hauagge and Noah Snavely
CVPR 2012

Prior to running the code you should run the compile script
compile.m

The main functions are:
sd_symi - intensity based local symmetry detector
sd_symg - gradient based local symmetry detector
sd_symd - intensity based local symmetry based descriptor

There is a file demo.m showing how to use these functions.

