initAsync method
Implementation
Future<void> initAsync(InputArray image, Rect boundingBox) async {
cvAssert(boundingBox.x >= 0, "boundingBox.x must be >= 0");
cvAssert(boundingBox.y >= 0, "boundingBox.y must be >= 0");
cvAssert(
boundingBox.right <= image.cols,
"boundingBox.right=${boundingBox.right} must be <= image.cols=${image.cols}",
);
cvAssert(
boundingBox.bottom <= image.rows,
"boundingBox.bottom=${boundingBox.bottom} must be <= image.rows=${image.rows}",
);
cvRun(() => cffi.TrackerMIL_Init(ref, image.ref, boundingBox.ref));
}