diag method

UMat diag({
  1. int d = 0,
})

... for the specified diagonal (d=0 - the main diagonal,

0 - a diagonal from the upper half, <0 - a diagonal from the lower half)

Implementation

UMat diag({int d = 0}) {
  final p = calloc<cvg.UMat>();
  cvRun(() => ccore.cv_UMat_diag(ref, d, p, ffi.nullptr));
  return UMat._(p);
}