Two-dimensional code recognition library
Brief introduction
Recently he wrote a two-dimensional code recognition library project write contact reports, there is time to write a full stick.
Zxing library can identify the type of bar code and two-dimensional code
libdmtx
DATA_MATRIX better (because my project just deal with the two-dimensional matrix code so try this)
official website address: http://libdmtx.sourceforge.net/
GitHub: https://github.com/dmtx
Can improve the accuracy of additional write binary processing, the threshold selection can use some try to determine clustering algorithm.