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我用opencv自带的haartraining训练了一个能识别矿泉水瓶的*.xml文件(140kb),再通过xml转换成cascade的代码,转换成*.cascade(3kb),放在openmv的根目录下。然后将人脸检测代码里的face_cascade = image.HaarCascade("frontalface", stages=25)“frontalface”改成了“*.cascade”,结果一运行就断开连接,然后只能重新插拔才能连上。 求解决办法