Detect tennis ball using OpenCV + C++
Compile:
g++ main.cpp -o main -lopencv_calib3d -lopencv_contrib -lopencv_core -lopencv_features2d -lopencv_flann -lopencv_gpu -lopencv_highgui -lopencv_imgproc -lopencv_legacy -lopencv_ml -lopencv_objdetect -lopencv_video -lopencv_features2d -L/usr/lib
Execute ./main --> video from source ./main 680 480 --> video from webcam at 680x480 pixel