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opencv_wechat_qrcode Binarizer algorithm query ?? #3008

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@hset911

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@hset911
System information (version)
  • OpenCV => 4.2
  • Operating System / Platform => Windows 64 Bit / arm32
  • Compiler => Visual Studio 2017 / gcc
    最近在研读二维码相关的代码,我注意到wechat_qrcode尝试了4次二值化算法来trydecode。在二值化算法结果后,我尝试保存了二值化之后的图像。同一张原图通过Hybrid,FastWindow , SimpleAdaptive ,AdaptiveThreshold后结果如下。
    Hybrid:
    Hybrid
    FastWindow:
    FastWindow
    SimpleAdaptive:
    SimpleAdaptive
    AdaptiveThreshold:
    AdaptiveThreshold
    同样的现象在不同图片和不同平台均已复现类似现象。很明显Hybrid方式二值化的图像并没有可用的信息,这个地方是出现了bug还是我对后面定位算法理解不到位导致的,请解答一下。谢谢。
    @dddzg

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