findHomographyUsac function

Mat findHomographyUsac(
  1. InputArray srcPoints,
  2. InputArray dstPoints,
  3. UsacParams params, {
  4. OutputArray? mask,
})

FindHomography finds an optimal homography matrix using 4 or more point pairs (as opposed to GetPerspectiveTransform, which uses exactly 4)

Mat cv::findHomography (InputArray srcPoints, InputArray dstPoints, OutputArray mask, const UsacParams &params)

https://docs.opencv.org/4.11.0/d9/d0c/group__calib3d.html#ga4b3841447530523e5272ec05c5d1e411

Implementation

Mat findHomographyUsac(InputArray srcPoints, InputArray dstPoints, UsacParams params, {OutputArray? mask}) {
  mask ??= Mat.empty();
  final prval = calloc<cvg.Mat>();
  cvRun(
    () =>
        ccalib3d.cv_findHomography_1(srcPoints.ref, dstPoints.ref, mask!.ref, params.ref, prval, ffi.nullptr),
  );
  return Mat.fromPointer(prval);
}