opencv_trail_effect.cpp: fix potential leak when exiting during option parsing
-rw-r--r-- 24 .gitignore
-rw-r--r-- 1672 Frame.hpp
-rw-r--r-- 1979 Makefile
-rw-r--r-- 2867 README
-rw-r--r-- 2662 Segmentation.hpp
-rw-r--r-- 496 TODO
-rw-r--r-- 4478 Trail.hpp
-rw-r--r-- 6971 opencv_trail_effect.cpp