Dice detection using DBSCAN

[Termiik]

I have 3 questions:

1: Will your dice always be that creamy-white colour?
2.: Will the spots always be blue?
3. Will the camera always be at the same height above the dice?

If so, should be easy to walk through the pixels, looking for white and blue.

I'll try with one die first, see how that goes.

1: yes it will always be the same colour.
2: The spots are actually black. these spots are the ones that are detected and drawn onto the image.
3: yes the camera will always be at the same height above the dice.

one dice works and 2 aswell, but as soon as they touch eachother, I can't seem to seperate the 2