How to check whether the image is blur or not in flutter

I am developing mobile app in flutter. By using opencv i can blur the image.
But what i need is i need to check whether the image is blur or not.

https://answers.opencv.org/question/111798/android-blur-image-detection-with-opencv-results-into-heavy-apk-size/

In the above link blur image detection was done in java. Likewise i need to check in flutter.