zxing 在哪里检查亮度、取景器图案和纠错级别
任何人都知道 zxing 库（Java 中）在哪里检查亮度和其他会影响 QR 码可读性的因素？
例如，如果亮度低于某个数字，则会显示一条消息“亮度低”。这个数字到底是在zxing库中哪里查到的呢？还有其他已检查可扫描性的因素在哪里？
我已经研究了 LuminanceSource 和 Detector 库，但没有找到针对这些库的具体数字或功能检查。
另外，为了确保二维码可扫描，我需要检查哪些因素？
Anyone knows where does zxing library (in Java) check for Luminance and other factors that would affect the readability of a QR code?
For example, if the luminance is lower than some number, it will show a massage saying "Luminance is low". Where exactly is this number checked in the zxing library? And also where are the other factors that have been checked for scannability?
I have looked into LuminanceSource and Detector libraries, but didn't found that specific number or function checking for these.
Also what are the all factors that I need to check to make sure the QR code is scannable?
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你看过源码吗？很清楚。
LuminanceSource不是这个地方；查看HybridBinarizer了解亮度。不存在“可扫描性检查”这样的事情。qrcode.Detector调用FinderPatternFinder来定位查找器模式。我不知道您所说的纠错级别是什么意思，但是common.reedsolomon包执行纠错，您可能可以通过名称猜到。Did you look at the source? It's pretty clear.
LuminanceSourceis not the place; look atHybridBinarizerfor luminance. There is no such thing as a "check for scannability".qrcode.DetectorcallsFinderPatternFinderto locate finder patterns. I don't know what you mean by error correction level but thecommon.reedsolomonpackage performs correction, as you can probably guess just by the name.