How can I get the result in the first GIF?

[Mengyu]

This is really an interesting repo. I ran this project and get the results like shown in the second and third GIF. The question is how can I get the result in the first GIF?

[kooku]

Thank you for your interest. I refer to the Tensorflow Lite example code.
https://github.com/tensorflow/examples/tree/master/lite/examples/gesture_classification/android
I hope this will help.