Frank Star

现在Android SDK那里也有好几个失效了T_T

是啊,前几个都莫得了（

formula： IoU=|AB|/(|A|+|B|-|AB|) Dice=2|AB|/(|A|+|B|)

with the formula： IoU=|AB|/(|A|+|B|-|AB|) Dice=2|AB|/(|A|+|B|) we can get: Dice=2*IoU/(1+IoU) your IoU is 76.73%, so your Dice should be about 86.833%