OpenCV のサンプルプログラム（画像）

静止画像を扱うもの

• GrabCut によるセグメンテーション

  cd /tmp
  cp /usr/share/doc/opencv-doc/examples/c/grabcut.cpp.gz .
  gzip -d grabcut.cpp.gz
  g++ -o a.out grabcut.cpp -I/usr/local/include/opencv -L/usr/local/lib -lopencv_highgui -lopencv_imgproc -lopencv_core
  ./a.out /usr/local/share/opencv/samples/c/fruits.jpg 
  

  
  

  マウスの左ボタンを使って範囲を決める． やり直したいときは r キーを押す。 選んだ範囲でのセグメンテーションを行いたいときは、n キーを押す

• ヒストグラムとスライドバー

  cd /tmp
  cp /usr/share/doc/opencv-doc/examples/c/demhist.c .
  g++ -o a.out demhist.c -I/usr/local/include/opencv -L/usr/local/lib -lopencv_highgui -lopencv_imgproc -lopencv_video -lopencv_core
  ./a.out /usr/local/share/opencv/samples/c/fruits.jpg 
  

  
• エッジ抽出

  cd /tmp
  cp /usr/share/doc/opencv-doc/examples/c/edge.c .
  g++ -o a.out edge.c -I/usr/local/include/opencv -L/usr/local/lib -lopencv_highgui -lopencv_imgproc -lopencv_video -lopencv_core
  ./a.out /usr/local/share/opencv/samples/c/fruits.jpg 
  

  
• コンター (contour)

  cd /tmp
  cp /usr/share/doc/opencv-doc/examples/c/contours.c .
  g++ -o a.out contours.c -I/usr/local/include/opencv -L/usr/local/lib -lopencv_highgui -lopencv_imgproc -lopencv_video -lopencv_core
  ./a.out 
  

  
• モルフォロジー演算

  cd /tmp
  cp /usr/share/doc/opencv-doc/examples/c/morphology.c .
  g++ -o a.out morphology.c -I/usr/local/include/opencv -L/usr/local/lib -lopencv_highgui -lopencv_imgproc -lopencv_video -lopencv_core
  ./a.out /usr/local/share/opencv/samples/c/fruits.jpg 
  

  
  
• ハフ変換による直線の抽出

  cd /tmp
  cp /usr/share/doc/opencv-doc/examples/c/houghlines.c .
  g++ -o a.out houghlines.c -I/usr/local/include/opencv -L/usr/local/lib -lopencv_highgui -lopencv_imgproc -lopencv_video -lopencv_core
  ./a.out /usr/local/share/opencv/samples/c/fruits.jpg 
  

  
• 楕円とのフィッティング

  cd /tmp
  cp /usr/share/doc/opencv-doc/examples/c/fitellipse.cpp .
  g++ -o a.out fitellipse.cpp -I/usr/local/include/opencv -L/usr/local/lib -lopencv_highgui -lopencv_imgproc -lopencv_video -lopencv_core
  ./a.out /usr/local/share/opencv/samples/c/fruits.jpg 
  

  
• MSER

  cd /tmp
  cp /usr/share/doc/opencv-doc/examples/c/mser_sample.cpp .
  g++ -o a.out mser_sample.cpp -I/usr/local/include/opencv -L/usr/local/lib -lopencv_highgui -lopencv_imgproc -lopencv_video -lopencv_features2d -lopencv_core
  ./a.out /usr/local/share/opencv/samples/c/fruits.jpg 
  

• peopledetect

  cd /tmp
  cp /usr/share/doc/opencv-doc/examples/c/peopledetect.cpp .
  g++ -o a.out peopledetect.cpp -I/usr/local/include/opencv -L/usr/local/lib -lopencv_highgui -lopencv_imgproc -lopencv_video -lopencv_objdetect -lopencv_core
  ./a.out /usr/local/share/opencv/samples/c/fruits.jpg 
  

• find_obj

  cd /tmp
  cp /usr/local/share/opencv/samples/c/find_obj.cpp .
  cp /usr/local/share/opencv/samples/c/box* .
  g++ -o a.out find_obj.cpp -I/usr/local/include/opencv -L/usr/local/lib -lopencv_highgui -lopencv_imgproc -lopencv_video -lopencv_features2d -lopencv_flann -lopencv_calib3d -lopencv_core
  ./a.out