qr-code

问题 I use this code in C# to decode (not detect) a QRCode and it works: LuminanceSource ls = new RGBLuminanceSource(image, image.Width, image.Height); Result result = new QRCodeReader().decode(new BinaryBitmap(new HybridBinarizer(ls))); Now I would like to detect a QRCode in a more complex image with a lot of other stuffs such images and text. I'm not able to understand how to accomplish this because I cannot find any sample and transforming Bitmap (C#) to Bitmatrix for Detector (zxing) is not so

问题 I am generating the JasperReport for my billing desktop application using JAVA but, I can't see the QR Code icon in the report in jasper 6.0.3 version; In the preview it is showing the QR Code, but not in the real report. Please can anyone suggest the idea and QR Code JAR files? 回答1: I am writing my answer very late. But I think zxing is the best open source library for generating the QR code. Here I am writing how you can generate QR code using zxing library in Java. I am using iReport as

问题 I am trying to get QR code recognition going in my opencv workflow but the program immediately exits with code 139. import zbar causes the problem because when i delete it my subsequent opencv code executes. How do I go about diagnosing this? It appears to be finding zbar python package in /Library/Python/2.7/site-packages/ (i.e. doesn't claim the package doesn't exist), but then it exits with code 139. Any idea what code 139 is? Is the problem likely in the python bindings, zlib.h, or

问题 I would like to create Design QR codes with Java. Design QR codes may contain a logo in form of a graphic. Here's an example for such designed codes. How to create such QR codes? 回答1: I just found a software that makes it possible to create such QR codes. There's a different way to put pictures in QR codes. Instead of scribbling on redundant pieces and relying on error correction to preserve the meaning, we can engineer the encoded values to create the picture in a code with no inherent

问题 my application include QR Scanner and Generator but when i add 'com.google.android.gms:play-services-vision:9.4.0' library it conflect with 'com.google.firebase:firebase-database:11.0.4' library here my Gradle dependences plus it shows me an error .. Error:Execution failed for task ':app:processDebugGoogleServices'. Please fix the version conflict either by updating the version of the google-services plugin (information about the latest version is available at https://bintray.com/android

问题 I am successfully drawing and displaying the QrCode on a QLabel , but it's not recognised when I scan it. Here is the code I used - I made a small class with a static function: void QrCodeDrawer::paintQR(QPainter &painter, const QSize sz, const QString &data, QColor fg) { char *str=data.toUtf8().data(); // NOTE: At this point you will use the API to get the encoding and format you want, instead of my hardcoded stuff: QrCode qr = QrCode::encodeText(str, QrCode::Ecc::HIGH); const int s=qr.size

问题 I have generated QR code in openerp using python. It's working successfully. But I Want to display name on qrcode Image. I tried to create in many way, but still i can not get solutions Python: a="Client Id: "+vals['client_id']+"\n"+"Client Name: "+vals['name'] qr = QRCode(version=20, error_correction=ERROR_CORRECT_L, box_size=2, border=2) qr.add_data(a) qr.make() im = qr.make_image() im.save("/home/cryosave_qrcodes/"+vals['client_id']+".png") Generated QRcode this done by me But I want show

问题 I am trying to open hybrid app in my iphone, so the best option for me is scan in a QR code that I can save time to input long URL. But what makes me so upset is that the icon fails to open in a new pop-up window, accordingly, I can't scan it. I am not sure if the the IE or chrome safety option causing that, or it's Dojo bug. This is QR code icon that I can't open: 回答1: Following the below steps, I havel successfully used the QR code from the Worklight Console's MBS preview page to preview

问题 I am trying to generate a QR code using davidshimjs/qrcodejs with the code below. But, when i try to generate DataURL, it gives following error : TypeError: document.getElementById(...).toDataURL is not a function Below is my code: HTML : <div id="qrcode"></div> JS : var qrcode = new QRCode("qrcode", { text: QRId, width: 200, height: 200, colorDark : "#000000", colorLight : "#ffffff", correctLevel : QRCode.CorrectLevel.H }); var dataURL = document.getElementById('qrcode').toDataURL(); 回答1:

问题 I made an QR Code reading application with AVFoundation by tutorial on this site (tutorial of Appcoda). After reading QR code, the app shows an UIAlertView. But it takes nearly 2 minutes (sometimes more than 3mins). I'll paste the whole ViewController.m file here. I hope it is enough. (UIAlertView is in captureOutput method) // // ViewController.m // Yuvio // // Created by İhsan Batuğhan YILMAZ on 29/08/15. // Copyright © 2015 Farabius. All rights reserved. // #import "ViewController.h"