findNonZero       576 modules/core/include/opencv2/core.hpp CV_EXPORTS_W void findNonZero( InputArray src, OutputArray idx );
findNonZero      1800 modules/core/test/test_arithm.cpp     findNonZero(img, pts);
findNonZero      1801 modules/core/test/test_arithm.cpp     findNonZero(img, pts2);