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Configuring Dev-Cpp for compiling C programs using the OpenCV May 8, 2012

Posted by viboon in : C , add a comment

Before configuring the Dev-Cpp, we need:
- Dev-Cpp
- MinGW
- CMake
- OpenCV

1. Download and extract or install Dev-Cpp, MinGW, CMake and OpenCV; also add C:\Dev-Cpp\bin\;C:\MinGW\bin\ into the system path.

2. Use CMake to build OpenCV binaries from the source code.

In CMake, fill in the source code and the binary generated directories.

Where is the source code: C:/OpenCVSource
Where to build the binaries: C:/OpenCV

Click “Configure” and select “MinGW Makefiles” as the generator.

Select “Specify native compilers”.

The C and C++ compilers are specified as follows:

C: C:/MinGW/bin/gcc.exe
C++: C:/MinGW/bin/g++.exe

Click “Finish”.

In the configuration screen type in “RELEASE” (or “DEBUG” if you want to build a debug version) for “CMAKE_BUILD_TYPE”.

Click “Configure” and “Generate”, respectively.

Go to the command prompt and inside the directory “C:\OpenCV” type:

mingw32-make

and

mingw32-make install

3. Configure the Dev-Cpp so it knows where to find OpenCV for your projects.

Go to “Tools -> Compiler Options”

Click “+” sign to add a new compiler named here, OpenCV.

On the section “Add these commands to the linker command line”
-lopencv_core231 -lopencv_highgui231 -lopencv_imgproc231 -lopencv_features2d231 -lopencv_calib3d231

In “Directories” tap, add the following into “Binaries”, “Libraries”, “C Includes” and “C++ Includes”.
*** Binaries ***
C:\mingw\bin
C:\OpenCV\bin
*** Libraries ***
C:\mingw\lib
C:\OpenCV\lib
*** C Includes ***
C:\mingw\include
C:\OpenCV\include
*** C++ Includes ***
C:\mingw\include
C:\OpenCV\include

Ref:
- http://opencv.willowgarage.com/wiki/InstallGuide
- http://opencv.willowgarage.com/wiki/MinGW
- http://opencv.willowgarage.com/wiki/DevCpp


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วารสารส่งเสริมเทคโนโลยี ฉบับที่ 222 April 15, 2012

Posted by viboon in : Manufacturing technologies , add a comment

แนะนำ…การใช้ของเหลวช่วยในกระบวนการตัดด้วยเลเซอร์ (ตอนที่ 1), วารสารส่งเสริมเทคโนโลยี ฉบับที่ 222 ประจำเดือน เมษายน-พฤษภาคม 2555


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Lens making April 12, 2012

Posted by viboon in : Manufacturing technologies , add a comment


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Identify the Linux Distribution Being Used January 17, 2012

Posted by viboon in : Ubuntu , add a comment 
lsb_release -a

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Add/remove Startup Applications in Ubuntu 11.10 January 17, 2012

Posted by viboon in : Ubuntu , add a comment

Copy or delete the program you want to automatically startup everytime a user logs in from /usr/share/applications/program.desktop to /etc/xdg/autostart folder.

For example, if you wish to start Firefox when you login, you have to run a following command to copy firefox.desktop to the /etc/xdg/autostart.

sudo cp /usr/share/applications/firefox.desktop /etc/xdg/autostart

To remove the program from the startup application, you have to remove the file as follows:

sudo rm /etc/xdg/autostart/firefox.desktop

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Useful application indicators for Ubuntu 11.10 January 16, 2012

Posted by viboon in : Ubuntu , add a comment

1. Weather indicator

sudo apt-get install indicator-weather

2. Dropbox Application Indicator

3. Sysmonitor Indicator

sudo add-apt-repository ppa:alexeftimie/ppa
sudo apt-get update
sudo apt-get install indicator-sysmonitor

4. System load indicator

sudo add-apt-repository ppa:indicator-multiload/stable-daily
sudo apt-get update
sudo apt-get install indicator-multiload

5. Touchpad Indicator

sudo add-apt-repository ppa:atareao/atareao
sudo apt-get update
sudo apt-get install touchpad-indicator

6. Battery status indicator

sudo apt-add-repository ppa:iaz/battery-status
sudo apt-get update
sudo apt-get install battery-status

7. Workspaces indicator

sudo add-apt-repository ppa:geod/ppa-geod
sudo apt-get update
sudo apt-get install indicator-workspaces

8. Keylock indicator

sudo add-apt-repository ppa:tsbarnes/indicator-keylock
sudo apt-get update
sudo apt-get install indicator-keylock

9. Pastie Clipboard Manager Indicator

sudo add-apt-repository ppa:hel-sheep/pastie
sudo apt-get update
sudo apt-get install pastie

Ref: http://www.techdrivein.com/2011/05/10-useful-application-indicators-for.html


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Clean recent documents opened in Ubuntu 11.10 January 16, 2012

Posted by viboon in : Ubuntu , add a comment

Delete recently-used.xbel:

rm ~/.local/share/recently-used.xbel

Create a new empty file:

touch ~/.local/share/recently-used.xbel

Make sure the new file cannot be modified:

sudo chattr +i ~/.local/share/recently-used.xbel

now, your display of recent items is gone.

If you want to revert back, remove the i attribute of recently-used.xbel:

sudo chattr -i ~/.local/share/recently-used.xbel

Ref: http://knezevblog.blogspot.com/2010/05/how-to-ubuntu-clear-and-disable-recent.html


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9 things to do after installing Ubuntu 11.10 January 16, 2012

Posted by viboon in : Ubuntu , add a comment

1. Update Ubuntu (Repository cache)

sudo apt-get update
sudo apt-get upgrade

2. Install ‘Ubuntu Restricted Extras’ – codecs/plugins

sudo apt-get install ubuntu-restricted-extras

To play encrypted DVD, you need to install libdvdread4.

sudo apt-get install libdvdread4
sudo /usr/share/doc/libdvdread4/install-css.sh

3. Install Additional (graphics card and webcam) drivers

sudo apt-get install cheese

4. Install Chromium Web browser for faster browsing

sudo apt-get install chromium-browser

And some codecs like FFmpeg for playing multimedia contents on web.

sudo apt-get install chromium-codecs-ffmpeg-extra

5. Install VLC Player

sudo apt-get install vlc

6. Install any Image editing program

sudo apt-get install gimp

with its some extra plugins

sudo apt-get install gimp-data-extras
sudo apt-get install gimp-plugin-registry

Pinta is another image editing program. It is similar to MS paint.

sudo apt-get install pinta

7. Try Gnome shell

sudo apt-get install gnome-shell

8. Setup an online file backup program
Dropbox

sudo apt-get install nautilus-dropbox

9. Install gnome tweak tool

sudo apt-get install gnome-tweak-tool

Ref: http://blog.sudobits.com/2011/09/08/10-things-to-do-after-installing-ubuntu-11-10/


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