[Tip] Install OpenCV3.0.0 for python3.4.3 under ubuntu15.04

1. download opencv3.0.0 source opencv-3.0.0.zip

2. upgrade cmake up to version 

3. how to install cmake

sudo apt-get install build-essential

wget http://www.cmake.org/files/v3.2/cmake-3.2.3.tar.gz

tar zxvf cmake-3.2.3.tar.gz
cd cmake-3.2.3
./configure
make

sudo apt-get install checkinstall
sudo checkinstall

(checkinstall is a good utility as is will generate the deb package for installation)

4.extract opencv source and go following

cd opencv-3.0.0

mkdir release

/usr/local/bin/cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr -D PYTHON_EXECUTABLE=$(which python3) ..

5. If the message that required to download something like "ippicv-xxxxx.tgz", to download it manually and extract it such like below path

6. add the option WITH_IPP=off into the cmake command

/usr/local/bin/cmake -D CMAKE_BUILD_TYPE=RELEASE -D WITH_IPP=off -D CMAKE_INSTALL_PREFIX=/usr -D PYTHON_EXECUTABLE=$(which python3) ..

7. If the message raised up missing  PythonLibs like below

Could NOT find PythonLibs (missing: PYTHON_LIBRARIES) (Required is exact version "3.4.0")

please do below action

> apt-get install python3-dev

8. do the step 6 again and you will find the related PythonLibs

make -j4
sudo make install

9. check if the opencv3.0.0 was installed correctly.

10. Done. Enjoy it.