Mixed up the linux_eclipse.rst file in the previous commit. Correcting it.
This commit is contained in:
Bernat Gabor
parent
762bc0f8af
commit
5ee8293e7b
@ -1,278 +1,237 @@
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.. _Linux_Eclipse_Usage:
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Using OpenCV with Eclipse (plugin CDT)
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****************************************
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.. note::
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For me at least, this works, is simple and quick. Suggestions are welcome
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Prerequisites
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===============
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1. Having installed `Eclipse <http://www.eclipse.org/>`_ in your workstation (only the CDT plugin for C/C++ is needed). You can follow the following steps:
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* Go to the Eclipse site
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* Download `Eclipse IDE for C/C++ Developers <http://www.eclipse.org/downloads/packages/eclipse-ide-cc-developers/heliossr2>`_ . Choose the link according to your workstation.
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#. Having installed OpenCV. If not yet, go :ref:`here <Linux-Installation>`.
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Making a project
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=================
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1. Start Eclipse. Just run the executable that comes in the folder.
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#. Go to **File -> New -> C/C++ Project**
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.. image:: images/a0.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 0
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:align: center
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#. Choose a name for your project (i.e. DisplayImage). An **Empty Project** should be okay for this example.
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.. image:: images/a1.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 1
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:align: center
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#. Leave everything else by default. Press **Finish**.
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.. image:: images/a2.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 2
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:align: center
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#. Your project (in this case DisplayImage) should appear in the **Project Navigator** (usually at the left side of your window).
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.. image:: images/a3.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 3
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:align: center
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#. Now, let's add a source file using OpenCV:
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* Right click on **DisplayImage** (in the Navigator). **New -> Folder** .
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.. image:: images/a4.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 4
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:align: center
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* Name your folder **src** and then hit **Finish**
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.. image:: images/a5.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 5
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:align: center
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* Right click on your newly created **src** folder. Choose **New source file**:
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.. image:: images/a6.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 6
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:align: center
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* Call it **DisplayImage.cpp**. Hit **Finish**
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.. image:: images/a7.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 7
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:align: center
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#. So, now you have a project with a empty .cpp file. Let's fill it with some sample code (in other words, copy and paste the snippet below):
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.. code-block:: cpp
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#include <cv.h>
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#include <highgui.h>
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using namespace cv;
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int main( int argc, char** argv )
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{
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Mat image;
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image = imread( argv[1], 1 );
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if( argc != 2 || !image.data )
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{
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printf( "No image data \n" );
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return -1;
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}
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namedWindow( "Display Image", CV_WINDOW_AUTOSIZE );
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imshow( "Display Image", image );
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waitKey(0);
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return 0;
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}
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#. We are only missing one final step: To tell OpenCV where the OpenCV headers and libraries are. For this, do the following:
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*
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Go to **Project-->Properties**
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.. image:: images/a8.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 8
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:align: center
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*
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In **C/C++ Build**, click on **Settings**. At the right, choose the **Tool Settings** Tab. Here we will enter the headers and libraries info:
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a.
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In **GCC C++ Compiler**, go to **Includes**. In **Include paths(-l)** you should include the path of the folder where opencv was installed. In our example, this is ``/usr/local/include/opencv``.
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.. image:: images/a9.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 9
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:align: center
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.. note::
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If you do not know where your opencv files are, open the **Terminal** and type:
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.. code-block:: bash
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pkg-config --cflags opencv
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For instance, that command gave me this output:
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.. code-block:: bash
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-I/usr/local/include/opencv -I/usr/local/include
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b.
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Now go to **GCC C++ Linker**,there you have to fill two spaces:
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First in **Library search path (-L)** you have to write the path to where the opencv libraries reside, in my case the path is:
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::
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/usr/local/lib
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Then in **Libraries(-l)** add the OpenCV libraries that you may need. Usually just the 3 first on the list below are enough (for simple applications) . In my case, I am putting all of them since I plan to use the whole bunch:
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* In **Libraries(-l)** add the OpenCV libraries that you may need. Usually just the 3 first on the list below are enough (for simple applications) . In my case, I am putting all of them since I plan to use the whole bunch:
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opencv_core
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opencv_imgproc
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opencv_highgui
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opencv_ml
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opencv_video
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opencv_features2d
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opencv_calib3d
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opencv_objdetect
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opencv_contrib
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opencv_legacy
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opencv_flann
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* opencv_core
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* opencv_imgproc
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* opencv_highgui
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* opencv_ml
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* opencv_video
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* opencv_features2d
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* opencv_calib3d
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* opencv_objdetect
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* opencv_contrib
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* opencv_legacy
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* opencv_flann
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.. image:: images/Eclipse_Tutorial_Screenshot-10.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 10
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:align: center
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.. image:: images/a10.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 10
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:align: center
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.. note::
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If you don't know where your libraries are (or you are just psychotic and want to make sure the path is fine), type in **Terminal**:
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If you don't know where your libraries are (or you are just psychotic and want to make sure the path is fine), type in **Terminal**:
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.. code-block:: bash
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.. code-block:: bash
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pkg-config --libs opencv
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pkg-config --libs opencv
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My output (in case you want to check) was:
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My output (in case you want to check) was:
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.. code-block:: bash
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.. code-block:: bash
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-L/usr/local/lib -lopencv_core -lopencv_imgproc -lopencv_highgui -lopencv_ml -lopencv_video -lopencv_features2d -lopencv_calib3d -lopencv_objdetect -lopencv_contrib -lopencv_legacy -lopencv_flann
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-L/usr/local/lib -lopencv_core -lopencv_imgproc -lopencv_highgui -lopencv_ml -lopencv_video -lopencv_features2d -lopencv_calib3d -lopencv_objdetect -lopencv_contrib -lopencv_legacy -lopencv_flann
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Now you are done. Click **OK**
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* Your project should be ready to be built. For this, go to **Project->Build all**
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.. image:: images/Eclipse_Tutorial_Screenshot-11.png
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.. image:: images/a11.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 11
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:align: center
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In the Console you should get something like
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.. image:: images/Eclipse_Tutorial_Screenshot-12.png
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.. image:: images/a12.png
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:height: 200px
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:alt: Eclipse Tutorial Screenshot 12
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:align: center
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If you check in your folder, there should be an executable there.
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Running the executable
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========================
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So, now we have an executable ready to run. If we were to use the Terminal, we would probably do something like:
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.. code-block:: bash
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cd <DisplayImage_directory>
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cd src
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./DisplayImage ../images/HappyLittleFish.jpg
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Assuming that the image to use as the argument would be located in <DisplayImage_directory>/images/HappyLittleFish.jpg. We can still do this, but let's do it from Eclipse:
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#. Go to **Run->Run Configurations**
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.. image:: images/Eclipse_Tutorial_Screenshot-13.png
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.. image:: images/a13.png
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:height: 300px
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:alt: Eclipse Tutorial Screenshot 13
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:align: center
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#. Under C/C++ Application you will see the name of your executable + Debug (if not, click over C/C++ Application a couple of times). Select the name (in this case **DisplayImage Debug**).
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#. Now, in the right side of the window, choose the **Arguments** Tab. Write the path of the image file we want to open (path relative to the workspace/DisplayImage folder). Let's use **HappyLittleFish.jpg**:
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.. image:: images/Eclipse_Tutorial_Screenshot-14.png
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.. image:: images/a14.png
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:height: 300px
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:alt: Eclipse Tutorial Screenshot 14
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:align: center
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#. Click on the **Apply** button and then in Run. An OpenCV window should pop up with the fish image (or whatever you used).
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.. image:: images/Eclipse_Tutorial_Screenshot-15.png
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.. image:: images/a15.png
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:alt: Eclipse Tutorial Screenshot 15
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:align: center
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#. Congratulations! You are ready to have fun with OpenCV using Eclipse.
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#. Congratulations! You are ready to have fun with OpenCV using Eclipse.
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.. _Linux_Eclipse_Usage:
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|
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Using OpenCV with Eclipse (plugin CDT)
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****************************************
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|
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.. note::
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For me at least, this works, is simple and quick. Suggestions are welcome
|
||||
|
||||
Prerequisites
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||||
===============
|
||||
|
||||
1. Having installed `Eclipse <http://www.eclipse.org/>`_ in your workstation (only the CDT plugin for C/C++ is needed). You can follow the following steps:
|
||||
|
||||
* Go to the Eclipse site
|
||||
|
||||
* Download `Eclipse IDE for C/C++ Developers <http://www.eclipse.org/downloads/packages/eclipse-ide-cc-developers/heliossr2>`_ . Choose the link according to your workstation.
|
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|
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#. Having installed OpenCV. If not yet, go :ref:`here <Linux-Installation>`.
|
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|
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Making a project
|
||||
=================
|
||||
|
||||
1. Start Eclipse. Just run the executable that comes in the folder.
|
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|
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#. Go to **File -> New -> C/C++ Project**
|
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|
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.. image:: images/a0.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 0
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:align: center
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|
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#. Choose a name for your project (i.e. DisplayImage). An **Empty Project** should be okay for this example.
|
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.. image:: images/a1.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 1
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:align: center
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#. Leave everything else by default. Press **Finish**.
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.. image:: images/a2.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 2
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:align: center
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#. Your project (in this case DisplayImage) should appear in the **Project Navigator** (usually at the left side of your window).
|
||||
|
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.. image:: images/a3.png
|
||||
:height: 400px
|
||||
:alt: Eclipse Tutorial Screenshot 3
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:align: center
|
||||
|
||||
|
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#. Now, let's add a source file using OpenCV:
|
||||
|
||||
* Right click on **DisplayImage** (in the Navigator). **New -> Folder** .
|
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|
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.. image:: images/a4.png
|
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:height: 400px
|
||||
:alt: Eclipse Tutorial Screenshot 4
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:align: center
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* Name your folder **src** and then hit **Finish**
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.. image:: images/a5.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 5
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:align: center
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* Right click on your newly created **src** folder. Choose **New source file**:
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.. image:: images/a6.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 6
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:align: center
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* Call it **DisplayImage.cpp**. Hit **Finish**
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.. image:: images/a7.png
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:height: 400px
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:alt: Eclipse Tutorial Screenshot 7
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:align: center
|
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#. So, now you have a project with a empty .cpp file. Let's fill it with some sample code (in other words, copy and paste the snippet below):
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.. code-block:: cpp
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#include <cv.h>
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#include <highgui.h>
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using namespace cv;
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int main( int argc, char** argv )
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{
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Mat image;
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image = imread( argv[1], 1 );
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if( argc != 2 || !image.data )
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{
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printf( "No image data \n" );
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return -1;
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}
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namedWindow( "Display Image", CV_WINDOW_AUTOSIZE );
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imshow( "Display Image", image );
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waitKey(0);
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return 0;
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}
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|
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#. We are only missing one final step: To tell OpenCV where the OpenCV headers and libraries are. For this, do the following:
|
||||
|
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* Go to **Project-->Properties**
|
||||
|
||||
.. image:: images/a8.png
|
||||
:height: 400px
|
||||
:alt: Eclipse Tutorial Screenshot 8
|
||||
:align: center
|
||||
|
||||
* In **C/C++ Build**, click on **Settings**. At the right, choose the **Tool Settings** Tab. Here we will enter the headers and libraries info:
|
||||
|
||||
a. In **GCC C++ Compiler**, go to **Includes**. In **Include paths(-l)** you should include the path of the folder where opencv was installed. In our example, this is ``/usr/local/include/opencv``.
|
||||
|
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.. image:: images/a9.png
|
||||
:height: 400px
|
||||
:alt: Eclipse Tutorial Screenshot 9
|
||||
:align: center
|
||||
|
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.. note::
|
||||
If you do not know where your opencv files are, open the **Terminal** and type:
|
||||
|
||||
.. code-block:: bash
|
||||
|
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pkg-config --cflags opencv
|
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|
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For instance, that command gave me this output:
|
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|
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.. code-block:: bash
|
||||
|
||||
-I/usr/local/include/opencv -I/usr/local/include
|
||||
|
||||
|
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b. Now go to **GCC C++ Linker**,there you have to fill two spaces:
|
||||
|
||||
First in **Library search path (-L)** you have to write the path to where the opencv libraries reside, in my case the path is:
|
||||
::
|
||||
|
||||
/usr/local/lib
|
||||
|
||||
Then in **Libraries(-l)** add the OpenCV libraries that you may need. Usually just the 3 first on the list below are enough (for simple applications) . In my case, I am putting all of them since I plan to use the whole bunch:
|
||||
|
||||
|
||||
opencv_core
|
||||
opencv_imgproc
|
||||
opencv_highgui
|
||||
opencv_ml
|
||||
opencv_video
|
||||
opencv_features2d
|
||||
opencv_calib3d
|
||||
opencv_objdetect
|
||||
opencv_contrib
|
||||
opencv_legacy
|
||||
opencv_flann
|
||||
|
||||
.. image:: images/a10.png
|
||||
:height: 400px
|
||||
:alt: Eclipse Tutorial Screenshot 10
|
||||
:align: center
|
||||
|
||||
If you don't know where your libraries are (or you are just psychotic and want to make sure the path is fine), type in **Terminal**:
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
pkg-config --libs opencv
|
||||
|
||||
|
||||
My output (in case you want to check) was:
|
||||
.. code-block:: bash
|
||||
-L/usr/local/lib -lopencv_core -lopencv_imgproc -lopencv_highgui -lopencv_ml -lopencv_video -lopencv_features2d -lopencv_calib3d -lopencv_objdetect -lopencv_contrib -lopencv_legacy -lopencv_flann
|
||||
|
||||
Now you are done. Click **OK**
|
||||
|
||||
* Your project should be ready to be built. For this, go to **Project->Build all**
|
||||
|
||||
.. image:: images/a11.png
|
||||
:height: 400px
|
||||
:alt: Eclipse Tutorial Screenshot 11
|
||||
:align: center
|
||||
|
||||
In the Console you should get something like
|
||||
|
||||
.. image:: images/a12.png
|
||||
:height: 200px
|
||||
:alt: Eclipse Tutorial Screenshot 12
|
||||
:align: center
|
||||
|
||||
If you check in your folder, there should be an executable there.
|
||||
|
||||
Running the executable
|
||||
========================
|
||||
|
||||
So, now we have an executable ready to run. If we were to use the Terminal, we would probably do something like:
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
cd <DisplayImage_directory>
|
||||
cd src
|
||||
./DisplayImage ../images/HappyLittleFish.jpg
|
||||
|
||||
Assuming that the image to use as the argument would be located in <DisplayImage_directory>/images/HappyLittleFish.jpg. We can still do this, but let's do it from Eclipse:
|
||||
|
||||
|
||||
#. Go to **Run->Run Configurations**
|
||||
|
||||
.. image:: images/a13.png
|
||||
:height: 300px
|
||||
:alt: Eclipse Tutorial Screenshot 13
|
||||
:align: center
|
||||
|
||||
#. Under C/C++ Application you will see the name of your executable + Debug (if not, click over C/C++ Application a couple of times). Select the name (in this case **DisplayImage Debug**).
|
||||
|
||||
#. Now, in the right side of the window, choose the **Arguments** Tab. Write the path of the image file we want to open (path relative to the workspace/DisplayImage folder). Let's use **HappyLittleFish.jpg**:
|
||||
|
||||
.. image:: images/a14.png
|
||||
:height: 300px
|
||||
:alt: Eclipse Tutorial Screenshot 14
|
||||
:align: center
|
||||
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#. Click on the **Apply** button and then in Run. An OpenCV window should pop up with the fish image (or whatever you used).
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.. image:: images/a15.png
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:alt: Eclipse Tutorial Screenshot 15
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:align: center
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||||
|
||||
|
||||
#. Congratulations! You are ready to have fun with OpenCV using Eclipse.
|
||||
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Reference in New Issue
Block a user