_SVDcompute      1436 modules/core/src/lapack.cpp     _SVDcompute(a, w, u, vt, flags);
_SVDcompute      1441 modules/core/src/lapack.cpp     _SVDcompute(a, w, noArray(), noArray(), flags);
_SVDcompute      1474 modules/core/src/lapack.cpp     _SVDcompute(a, w, u, vt, flags);