Cascade classifier can't be trained. Check the used training parameters.

[weixin_44988924]

===== TRAINING 0-stage =====
<BEGIN
POS count : consumed   2 : 2
NEG count : acceptanceRatio    6 : 1
Precalculation time: 0.001
+----+---------+---------+
|  N |    HR   |    FA   |
+----+---------+---------+
END>
Cascade classifier can't be trained. Check the used training parameters.

 

这是啥原因