Show IoU, save anchors to file.Show anchors in the window if used -show

AlexeyAB

2018-03-04 74f98da211d2de6f442304b3829e2458282c286c

 src/network.h

@@ -64,6 +64,7 @@
    #ifdef GPU
    float **input_gpu;
    float **truth_gpu;
   int wait_stream;
    #endif
} network;