Install open CV in ubuntu:”Simplest way”

I have been searching through the wide domain of Internet on how to install open CV and found many blogs with atleast 8-10 steps.If you miss one or if it doesnt work its really frustrating 😛 . 

So, after this search found the simplest way

1. sudo apt-get install libopencv-*

if you want python integration also

2. sudo apt-get install python-opencv

3. sudo apt-get install python-numpy  

# I have installed opencv in ubuntu 11.10 running on beagleboard-xm so if you find problem post it as comment. I’ll try solving it.