average_contrast_zgf.py commit.
Merge branch 'master' of https://github.com/BNUCNL/region-growing-froi
add testing data
renew the average contrast and data path
delete file with .py~
add the wrong deleted file
add 2d and 3d region grow
Merge pull request #1 from liuzhaoguo/master

add 2d and 3d region grow
another version of region_t region grow
Merge pull request #2 from liuzhaoguo/master

another version of region_t region grow
Create README.md
Merge branch 'master' of github.com:BNUCNL/region-growing-froi

add new files.