MIL Tracker Implementation in 3.0.0 Has Memory Leaking

[superxingzheng]

I noticed obvious memory leaking when I was testing the MIL algorithm (https://github.com/Itseez/opencv_contrib/blob/master/modules/tracking/samples/tracker.cpp) with opencv and opencv_contrib both in 3.0.0. I probably won't have time to look into the source code. Hopefully some one who are familiar with this implementation can figure out where is the problem.

[lenlen]

Thanks @superxingzheng, but have you a report or log (as valgring) to address the memory leak?

[superxingzheng]

Sorry I didn't spend time to locate the leaking. I noticed the memory leaking in htop when the sample was running.@lenlen