Jackey-Huo's first Hello Wrild of G2O

Hi~ guys

this is an example of g2o usage

write based on the repo from GaoXiang: g2o_ba_example

How to build:

    git clone https://github.com/Jackey-Huo/g2o_example.git
    cd g2o_example
    mkdir build
    cd build
    cmake ..
    make -j

Then the executable file g2o_example will in folder bin/

How to run:

    ./bin/g2o_example data/img1.png data/img2.png

Now, All the things are down, cheer up and happy coding!

Oops, Maybe... Happy Debuging :)