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Question about QRCodeRecognize #149
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你好,最近在做识别二维码的功能,看到EFQRCode识别这块的逻辑有2个疑问.
为什么 CIDetectorAccuracyLow 低精度的识别要放到高精度的后面呢,我理解低精度的速度较快,高精度应该做兜底.
另外一个疑问是 取得图片的灰度这块是必须的吗
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