#2119 First version of CIndexFeatures.
IndexFeatures bug fixed and add unit test.
IPython notebook - sudoku recognizer with opencv
- Using template
- Add credits
- Shogun, Opencv and wikipedia references
- Show all segmented numbers in a grid
- Print sudoku as block
- Explanation -> perspective transformation
- Clean output
- axis("off")

IPython notebook - sudoku recognizer with opencv
- Grammar an typo

IPython notebook - sudoku recognizer with opencv
- Path to image and dataset

updating revision of data submodule
Code style modified.
Merge pull request #2110 from ahcorde/sudoku_ipythonNotebook

IPython notebook - sudoku recognizer with opencv
Merge pull request #2120 from pl8787/indexfeatures

#2119 Add CIndexFeatures
Merge remote-tracking branch 'upstream/develop' into develop