pyrDownAsync function
PyrDown blurs an image and downsamples it.
For further details, please see: https:///docs.opencv.org/master/d4/d86/group__imgproc__filter.html#gaf9bba239dfca11654cb7f50f889fc2ff
Implementation
Future<Mat> pyrDownAsync(
Mat src, {
(int, int) dstsize = (0, 0),
int borderType = BORDER_DEFAULT,
}) async =>
cvRunAsync(
(callback) => cffi.PyrDown_Async(src.ref, dstsize.cvd.ref, borderType, callback),
matCompleter,
);