extractChannelAsync function

Future<Mat> extractChannelAsync(
  1. InputArray src,
  2. int coi, {
  3. OutputArray? dst,
})

ExtractChannel extracts a single channel from src (coi is 0-based index).

For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#gacc6158574aa1f0281878c955bcf35642

Implementation

Future<Mat> extractChannelAsync(InputArray src, int coi, {OutputArray? dst}) async {
  dst ??= Mat.empty();
  return cvRunAsync0(
    (callback) => ccore.cv_extractChannel(src.ref, dst!.ref, coi, callback),
    (c) {
      return c.complete(dst);
    },
  );
}