ODROID to MATLAB Stream¶

Intro¶

Required:

ODROID with OpenCV installed.
Computer with OpenCV installed in default locations.
MATLAB with associated compiler e.g. XCode(Mac OS)/Visual Studio or Microsoft SDK (for Windows)
WiFi network (Access Point)
Streaming ODROID application and MATLAB receiving application.

ODROID setup¶

Setup OpenCV¶

Make sure that your odroid is connected to internet.

Open a terminal window, and run the following command,

sudo apt-get -y install libopencv-dev

sudo apt-get -y install build-essential cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev

Setup streaming app¶

Create a clean directory and navigate to it e.g.

cd ~/Desktop
mkdir imgstream
cd imgstream

Clone the streaming app from Github

git clone https://github.com/mzahana/Image_Live_Stream.git
cd Image_Live_Stream

Navigate to the stream_cpp folder, and compile the app

cd opencv_stream/stream_cpp
cmake . & make

If all goes well, then two executable files should be generated: sender and receiver. Otherwise, make sure that you installed OpenCV properly in the default locations.

To stream images over network, use the sender app after you connect a camera to ODROID. To use the sender app, use the following command in a terminal, inside the stream_cpp folder,

./sender 192.168.1.100 10000

where 192.168.1.100 is the IP of machine running MATLAB (the host machine) (which should be on the same network as the ODROID’s). 10000 is the port that MATLAB is listening on. Use appropriate IP and port that match the host ones.

MATLAB setup¶

On MacOS¶

Make sure that you installed XCode on your Mac OS.

Make sure that you associat your MATLAB with XCode compiler (Google it). Run mex -setup in MATLAB command line for more information.

Navigate to the Image_Live_Stream folder that you downloaded from Github.

Run the setup.m file

>> setup

If all goes well, you are ready to receive live stream of images from ODROID.

Look at the testScript.m file to see how you can use the ImgStream class to establish the connection, and receive image data.

On Windows¶

Make sure that you install OpenCV 2.4.13 on your Windows. Follow this video. It is assumed that you installed the OpenCV folder in C:\

Make sure that your MATLAB is associated with compiler. Run mex -setup in MATLAB command line for more information.

In MATLAB, run the setup.m file.

If all goes well, you are ready to receive image stream. Look at the test script to get familiar on how to use the ImgStream Class.