ImageManipulationWithNode

1. sudo apt-get install graphicsmagick
2. sudo apt-get install nodejs
3. sudo apt-get install npm
4. npm install gm
5. node append.js

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For install opencv and node-opencv

1. sudo npm install node-gyp -g
2. sudo apt-get install libopencv-dev [takes time]
3. npm install opencv

I am using this node module: https://github.com/peterbraden/node-opencv