Octave and Image Tool

      Octave is alternative program for MATLAB, which is a GNU project and can run on Linux systems.It is free and it's useful for  a lot of operations like MATLAB.I use Octave for Computer Vision.Like Matlab , octave has same tool include some ready function for some compex perations..Installation of octave is very simple with sudo apt-get install octave is fine but for normal usage.If you want to use Image tool you must install 3.8 version or later.

Download version 3.8 later , octave and use this command for installing pure octave.

tar xvf octave-version.tar.gz
cd octave-version
./configure
make
sudo make install

make step is a little bit long so you can use make -j number , number here number of the your core so you can parallel this step ,and time is decrease.

Then we must install package image.But most of the package have pre-package, so you have to install another package , here dependencies image tools

image ->general
           ->signal->control

for install package Download  and give the command on octave pkg install package_name.tar.gz

You must start the control,then signal and general last install image tool.

Then you must load the image package with : pkg load image 

Then you can use a lot of ready image-tools functions.