Optimal params for optical flow tracking. Some small box fixes.

AlexeyAB

2018-02-08 be90b8e8cb6bbf3951a5e185aa43ccfdd4a03f4d

 src/detector.c

@@ -82,6 +82,7 @@
    args.classes = classes;
    args.jitter = jitter;
    args.num_boxes = l.max_boxes;
   args.small_object = l.small_object;
    args.d = &buffer;
    args.type = DETECTION_DATA;
   args.threads = 4;// 8;