cvGet3D           680 modules/core/include/opencv2/core/core_c.h CVAPI(CvScalar) cvGet3D( const CvArr* arr, int idx0, int idx1, int idx2 );
cvGet3D           691 modules/core/test/test_mat.cpp            Scalar(cvGet3D(matC, idx0[0], idx0[1], idx0[2])) != val1 ||