detectAndDecodeCurved method

(String, VecPoint, Mat) detectAndDecodeCurved(
  1. InputArray img, {
  2. VecPoint? points,
  3. Mat? straightQRcode,
})

Both detects and decodes QR code on a curved surface.

https://docs.opencv.org/4.x/de/dc3/classcv_1_1QRCodeDetector.html#a9166527f6e20b600ed6a53ab3dd61f51

Implementation

(String rval, VecPoint points, Mat straightQRcode) detectAndDecodeCurved(
  InputArray img, {
  VecPoint? points,
  Mat? straightQRcode,
}) {
  final p = points?.ptr ?? calloc<cvg.VecPoint>();
  final s = straightQRcode?.ptr ?? calloc<cvg.Mat>();
  final v = calloc<ffi.Pointer<ffi.Char>>();
  cvRun(() => cobjdetect.cv_QRCodeDetector_detectAndDecodeCurved(ref, img.ref, p, s, v, ffi.nullptr));
  final ss = v.value.cast<Utf8>().toDartString();
  calloc.free(v);
  return (ss, points ?? VecPoint.fromPointer(p), Mat.fromPointer(s));
}