region method

Mat region(
  1. Rect rect
)

https://docs.opencv.org/4.x/d3/d63/classcv_1_1Mat.html#aa7ec97373406215f2d4bc72cc1d27036

Implementation

Mat region(Rect rect) {
  cvAssert(rect.right <= width && rect.bottom <= height);
  final dst = Mat.empty();
  cvRun(() => ccore.cv_Mat_region(ref, rect.ref, dst.ptr, ffi.nullptr));
  return dst;
}