How to use OpenCV in the Flutter SDK?

Flutter is still beta and there is no OpenCV available for flutter unfortunately. But you can integrate the OpenCV native libs or sdk for both Android and IOS and invoke them through platform channels

Hope that helped!

Flutter plugin package is avialable - https://pub.dartlang.org/packages/flutter_opencv

You can try this and it might be helpful.

Now there seems to be a pretty new opencv package providing a binding to OpenCV-4.x, published in April 2020.

However at the moment it is not a full binding yet.