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去年买的星瞳的openmv，写的程序识别人脸正常，现在不灵了，程序没有改动，光线也充足的地方，就是认不出人脸了， 如果把face_cascade = image.HaarCascade("frontalface", stages=25)这个的stages参数改低，比如5，可以识别出东西，得是是个东西都识别，没有意义了。去年就用的stages=25就能很容易识别出人脸的
https://singtown.com/learn/50013/
按照视频重新操作一下。
如果还不行就联系客服寄回测试。