参考：
1、http://scikit-image.org/docs/stable/
2、http://scikit-image.org/docs/stable/user_guide.html
1Getting started
2A crash course on NumPy for images
NumPy indexing
Color images
Coordinate conve
Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero.
Note: The solution set must not contain dupli
