Darknet is an open source neural network framework written in C and CUDA. It is fast, easy to install, and supports CPU and GPU computation.
For more information see the Darknet project website.
For questions or issues please use the Google Group.
cd darknet
make
wget https://pjreddie.com/media/files/darknet19_448.conv.23
./darknet detector test nfpa.data yolov2-nfpa.cfg <weights name>.weights data/<image name>.jpg
./darknet detector train nfpa.data yolov2-nfpa.cfg <weights name>.weights