I bought an ESP32 with a camera, my wish is to make a QR code reader that, after reading the QR code, will send the data to the server where it will be compared with the database, whether to let the user enter the room or not. Can you help me how to start developing this ...
定义QRCodeDecoder用于解析二维码数据 这个类还是比较简单的,首先需要生成一个ImageReader对象用于接收camera的preview的数据,然后还需要一个QRCodeReader对象用于解析二维码。我们创建ImageReader的时候需要指定图像的宽高和编码格式,我设置的编码格式为ImageFormat.YUV_420_888。编码格式的设置影响到ImageReader的输出Buffer内容。
I recently bought a G32 for my elderly mother, her first smart phone, and I'm trying to make it as easy and safe to use as possible. However I can't seem to find a way to disable automatic QR code scanning through the camera app. I'm sure you can appreciate why this is a conc...
E/AndroidRuntime(22442): at com.dlazaro66.qrcodereaderview.QRCodeReaderView.surfaceChanged(QRCodeReaderView.java:189) 上一行错误是在start Activity B之后的,说明Activity A没有完全finish掉。 解决方案: 调用持有mydecoderview的父容器,调用removeView方法强行Destroy掉就可以了。
gruhn/vue-qrcode-readerPublic Notifications Fork324 Star2k Code Issues8 Pull requests1 Actions Security Insights Additional navigation options New issue Camera selection#269 Closed AuspeXeuopened this issueOct 19, 2021· 21 comments Owner gruhncommentedOct 24, 2021 ...
A fast, energy efficient, highly-configurable QR code scanner for Cordova apps and the browser. cordovacameraqrcodecordova-pluginqrqrcode-scannerqrcode-readerqrscannerdevice-cameravideo-preview UpdatedSep 1, 2023 JavaScript vigzmv/what_the_thing ...
我们本次优化的QR_Code(最常见的二维码)则是在qrcode包下。生成逻辑在QRCodeWriter类中,识别逻辑在QRCodeReader类中。 扫码页:CaptureActivity 扫描流程 camera预览帧 -> 二值化(将图像转化成01矩阵1⃣以做后续处理) -> 扫描定位点 -> 畸变校正-> 识别内容(编码的逆运算) ...
{this.RunOnUiThread(() =>{vartextureQRCodeScan = FindViewById<TextureView>(Resource.Id.textureQRCodeScan);vartextviewQRCodeScan = FindViewById<TextView>(Resource.Id.textviewQRCodeScan);varimage =textureQRCodeScan.Bitmap;if(image ==null)return;lock(sessionLocker) ...
*/privateResultscanningImage(Bitmapbitmap){Map<DecodeHintType,String>hints1=newHashtable<>();hints1.put(DecodeHintType.CHARACTER_SET,"utf-8");RGBLuminanceSourcesource=newRGBLuminanceSource(bitmap);BinaryBitmapbitmap1=newBinaryBitmap(newHybridBinarizer(source));QRCodeReaderreader=newQRCodeReader();Re...
}///<summary>///识别二维码///</summary>///<param name="bytes"></param>///<returns></returns>publicstaticstringReadQRCode(Bitmap image) {varresult =string.Empty;varbarcodeReader =newZXing.Android.BarcodeReader();vardecoded =barcodeReader.Decode(image);if(decoded !=null) ...