morphologyDefaultBorderValue function
MorphologyDefaultBorder returns "magic" border value for erosion and dilation. It is automatically transformed to Scalar::all(-DBL_MAX) for dilation.
For further details, please see: https:///docs.opencv.org/master/d4/d86/group__imgproc__filter.html#ga94756fad83d9d24d29c9bf478558c40a
Implementation
Scalar morphologyDefaultBorderValue() {
final s = calloc<cimgproc.Scalar>();
cvRun(() => cimgproc.MorphologyDefaultBorderValue(s));
return Scalar.fromPointer(s);
}