normalize and subtract mean value#20

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VigorPoppy wants to merge 9 commits intolewes6369:masterfrom

Commits on Feb 13, 2019

Commits on Feb 14, 2019

Fixed some bugs
eric612
committed

Commits on Apr 18, 2019

Update readme.md
eric612
authored

Commits on Apr 19, 2019

Update readme.md
eric612
authored

Commits on May 8, 2019