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Questions tagged [zxing]

ZXing (pronounced "zebra crossing") is an open-source, multi-format 1D/2D barcode image processing library implemented in Java, with ports to other languages. Its focus is on using the built-in camera on mobile phones to scan and decode barcodes on the device, without communicating with a server, though the library also supports use on a server.

Questions with this tag concern the open-source barcode encoding and decoding library ZXing.

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Using ZXing and Delphi over dark background

I made a simple application to collect bar codes and downloading to a desktop app using ZXing and Delphi 10.3. The cell application runs fine but it does not recognize the labels when attached over dark backgrounds. I have plenty experience using…
alvaroc
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How to draw four boundary rounded corner in canvas for qr code scanner Journeyapp Zxing?

How to draw four boundary rounded corner in canvas for journeyapps zxing qr code scanner Java code? Here is the code that I used. Just a rectangle with no rounding. How to create a rounded rectangle with custom radius. Please see imag This is my…
Developer
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Using itext How to add Logo into QR code?

Note : I can not use zxing library because its restricted in my organization. I knew using itext we can create QR code but struggling to add Logo in it as shown in below image BarcodeQRCode qrcode = new BarcodeQRCode(myString.trim(), 1, 1, null); …
Sachin J
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How to send numpy arrays into zxing for detection, rather than a path to an image file?

How to read the image through opencv and send it to zxing for detection instead of using the image path? reader = zxing.BarCodeReader() qrcode = reader.decode(img_path) I want to use the code as below, but I won't do it in detail. reader =…
SunWenkui
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Decoding QR Code embedded into PDF with ZXing on Java backend

In a Java backend server application I want to decode a QR code embedded into a PDF file using the zxing library. I adapted the example from https://gist.github.com/JoelGeraci-Datalogics/dd9e214d4c584d61f5b1 to work with the pdfbox library as…
JCvanDamme
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Migrating Zxing blazor from Blazor wasm app to Blazor Hybrid app

i was using Zxing.blazor for scan QR code , but in .NET maui , they ask me for permission ,and i have no idea how to access this permission PLEASE HELP!!!
Ilyes Sahbeni
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ZXing java.lang.NoClassDefFoundError: com/google/zxing/WriterException Error

Project Context Currently trying to generate QR codes to implement some information within it, that includes data (such as a student ID number, first name, last name) and MAC address of local computer (testing on my desktop computer for now, but…
johnl5124
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Please tell me how to upgrade the QR code scanning recognition rate

I am developing using android studio and java and am a beginner developer. It works by implementing zxing-android-embedded:4.3.0 in the app to scan the QR. Depending on the angle, light, etc., there are many cases in which recognition is…
kch
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Unable to get barcode values from subimages using google zxing in Java

Using Zxing I tried to get barcode value from input image. I used the below code for getting barcode value. BufferedImage img = ImageIO.read(new File("C:/Demo_Project/Project/input.jpeg")); BufferedImage subimage =…
aarav
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How to read standard barcodes (EAN) with zxing? iOS

Hi folks just a quick question, how do I read non-QR codes with zxing? I am setting the ZXingWidgetController to 1D mode, and am using a MultiFormatUPCEANReader however the barcodes just won't scan. Any suggestions?
John S
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Questions re barcode scanning for iOS

2 questions about the open-source, zxing barcode scanner. A) Can I customise the design of the scan overlay/viewport on the iOS? Ie: change the square/overlay/cancel button etc. If so, how, or is there documentation? B) Can zxing scan 1D product…
MartinH23
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The report build with JasperReports that contains QR Code failed to run at iDempiere 2.1

I wish to show the QR Code at report generated with JasperReports. I am using Jaspersoft Studio (JSS) 6.2.0 to generate the jrxml and using iDempiere [ ADEMPIERE_MAIN_VERSION=Release 2.1,ADEMPIERE_DB_VERSION=2014-10-31]. The jrxml contains this…
mou
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QR Code URL data not readable or encrypted

There is an app which I use, which can read the name of a location from a qr code. Recently, the qr code was changed so that the name of the location is no longer readable by zxing or any other barcode reader that I can find. Instead, I get a long…
Craig Morgan
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Android ZXing implementation

I created a project with the ZXing source code. That works fine. After I changed the package name com.google.zxing.client.android to com.google.zxing.client.android.vofox But it shows error in real device (HTC Wildfire) It has no error in…
nikhilkilivayil
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How to install Zxing CPP (C++) on RaspberryPi

As the title, I want to build an environment of ZXing C++ on Raspberry Pi. According to the https://github.com/nu-book/zxing-cpp instruction, I try to build it. However, I face some problems, like Cmake error below. Anyone has the experience that…
Steven
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