Barcode has been around for more than half a century. There are various types of barcodes and reading libraries. Some libraries focus on one barcode format like libdmtx while most libraries can read all kinds of formats. In this article, we are going to implement a mobile barcode scanner with...

Among the Python barcode SDKs available, only a few support ARM32 and ARM64 architectures. The Dynamsoft Barcode Reader stands out as the premier commercial SDK offering robust 1D and 2D barcode recognition for ARM32 and ARM64 devices. This article guides you through creating ARM32 and ARM64 emulated environments on Windows,...

From 9.x to 10.x, the Dynamsoft JavaScript barcode SDK has undergone a complete redesign. The new version not only provides essential barcode scanning functionalities but also integrates seamlessly with other Dynamsoft products, such as Dynamsoft Label Recognizer, Dynamsoft Camera Enhancer, Dynamsoft Document Normalizer, and Dynamsoft Code Parser. All Dynamsoft products...

Recently, Dynamsoft released a new .NET MAUI Barcode SDK for building barcode scanning applications on Android and iOS. In this tutorial, we will use Visual Studio Code to create a .NET MAUI Barcode Scanner from scratch. Our application will decode barcodes and QR codes from both image files and camera...

OpenCV is a powerful library capable of handling a wide range of computer vision tasks. However, its comprehensive functionality can result in a large library size, which may be excessive for applications that only require cross-platform camera streaming. In this article, we will demonstrate how to slim down OpenCV to...

WebP images enhance web performance, but decoding barcodes embedded in them can be a challenge since Dynamsoft Barcode Reader doesn’t support WebP directly. If you have a QR code in WebP format, how can you recognize it with Dynamsoft Barcode Reader? This article shows how to use libwebp with Dynamsoft...

Rust’s popularity is increasing rapidly. This article aims to integrate Rust with the Dynamsoft C++ Barcode Reader SDK. We will walk through the process of building a command-line barcode reader for Windows and Linux. This article is Part 14 in a 16-Part Series. Part 1 - Building a C/C++ Barcode...

In the previous article, we implemented a Flutter barcode and QR code scanner for Android using Kotlin and CameraX. Since the Dart code is platform-independent, no changes are necessary. In this article, we will take steps to implement the native camera and barcode scanning logic for iOS using Swift, AVFoundation,...

Barcode scanning is an essential tool for modern inventory management. It improves accuracy, efficiency, real-time tracking, and cost savings, making it an important part of any effective inventory management system. In this article, we will demonstrate how to build a scanner for multiple barcodes, QR codes, and DataMatrix codes with...

When considering the creation of a Flutter barcode scanner application, your first thought might be to search for an existing Flutter plugin. One option is to combine the camera plugin with a barcode scanning plugin, or to utilize a barcode scanning plugin that includes a camera preview feature. However, the...

Many open-source JavaScript libraries for reading barcodes and QR codes exist, yet few are suited for enterprise use due to a lack of long-term updates and maintenance roadmaps. Additionally, the performance of pure JavaScript often falls short. For those prioritizing performance, WebAssembly serves as a superior alternative to pure JavaScript...

If you want to use the PHP Laravel framework to build a web-based barcode and QR code reader, you can implement the barcode detection logic on either the client side or the server side. Dynamsoft offers a variety of SDKs for different platforms, including desktop, mobile, and web. In this...

When using PHP, you may sometimes need to integrate a few C++ libraries. This article guides you through the process of building a PHP Barcode and QR Code reading extension using the Dynamsoft C++ Barcode SDK on both Windows and Linux. This article is Part 1 in a 2-Part Series....

In a previous article, we developed a barcode and QR code scanner for Windows and Android using Qt6. In this follow-up, we’ll extend the project to include support for iOS devices. To achieve this, we’ll integrate the Dynamsoft iOS Barcode Reader SDK. To facilitate seamless communication between the SDK and...

Qt is renowned for its cross-platform capabilities, enabling developers to craft applications for Windows, macOS, Linux, iOS, and Android. In this article, we will construct a QR code scanner for Windows and Android utilizing Qt6. The sample code will be presented in C++ and QML, employing the Dynamsoft Barcode Reader...

SwiftUI is a robust UI framework designed for constructing native applications across all Apple platforms. This article will guide you through developing an iOS QR code scanner utilizing SwiftUI, Dynamsoft Camera Enhancer and Dynamsoft Barcode Reader on an M1 Mac mini. Prerequisites Before starting, ensure you have the following tools...

Go’s native support for concurrency is one of its standout features, making it an excellent choice for building web servers capable of handling multiple requests simultaneously and efficiently. In this article, we’ll guide you through the creation of a web application designed to decode multiple barcode images uploaded by users....

In the previous article, we talked about what is QR code, its modes for encoding the data, and how to generate QR codes in Python. In this article, we are going to build an online QR code generator to make it convenient to generate QR codes in the browser. We...

A barcode or bar code is a method of representing data in a visual, machine-readable form. There are all kinds of barcodes and mainly, they can be divided into 1D barcodes and 2D barcodes. We can get binary data from barcodes and there are different ways to interpret the data....

A QR code (quick-response code) is a type of two-dimensional matrix barcode. It uses four standardized modes of encoding: numeric, alphanumeric, byte or binary, and kanji. Its highest storage capacity can be 2,953 bytes. Here is a table about different modes: Input mode Mode indicator Max. characters Possible characters, default...

In previous articles, we developed a Go barcode reader module integrating the Dynamsoft Barcode Reader C/C++ SDK for Windows and Linux. In this article, we will extend the module to support macOS. This article is Part 3 in a 4-Part Series. Part 1 - Building a Go Module with C...

Starting with version 10, the Dynamsoft Barcode Reader SDK has been entirely rewritten in C++, providing exclusively C++ APIs. This marks a significant departure from version 9.x, which offered both C and C++ APIs, rendering our Go module designed for version 9.x incompatible with version 10. The incompatibility arises because...

In the world of software development, integrating powerful third-party libraries into new or existing projects can significantly enhance functionality and efficiency. For Go developers needing robust barcode scanning capabilities, incorporating the Dynamsoft Barcode SDK into a Go module offers a seamless way to leverage advanced barcode reading technology. This article...

Zapier is a workflow automation platform. It has integrated over 6000 applications and we can chain different applications in the same workflow without writing code. In this article, we are going to build a Zapier app integration to scan barcodes. We can scan barcodes in a web application and the...

In the previous article, we demonstrated how to incorporate iOS MRZ detection frameworks into the MrzScannerSDK NuGet package. Having mastered the integration of iOS frameworks for a standalone NuGet package, we now turn our attention to integrating iOS SDKs for barcode, MRZ, and document detection into the comprehensive .NET MAUI...

Last week, we enhanced the .NET MAUI library Capture.Vision.Maui by adding document and MRZ (Machine-Readable Zone) detection capabilities for the Windows platform. We also enabled our .NET MAUI application to scan barcodes, documents, and MRZs in Windows. This week, we will further enhance the library by adding Android support. We...

Portable Document Format (PDF) is a file format developed by Adobe to present documents. Based on the PostScript language, each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, vector graphics, raster images and other information needed to display it. A barcode or bar...

OpenCV is an open-source computer vision and machine learning software library and has a basic barcode reading ability. It has a QR Code detector added in 2018 and a barcode detector added in 2021 which supports detecting and decoding of EAN-13, EAN-8, and UPC-A barcodes. It has a JavaScript version...

An AR-integrated pharmaceutical lookup application is a specialized software tool that combines Augmented Reality (AR) technology with a pharmaceutical information database. This integration provides an interactive and enhanced method for accessing drug-related data. Users can scan pharmacy barcodes using their mobile devices to retrieve information about the medication, such as...

Dynamsoft’s official C++ Barcode SDK provides only command line samples in C++, which are not user-friendly for selecting image files and displaying results. The Win32 API (Windows API) is a core set of application programming interfaces primarily used for developing Windows GUI applications in C and C++. This article will...

Remix is a full stack web framework that lets you focus on the user interface and work back through web standards to deliver a fast, slick, and resilient user experience. It has been acquired by Shopify and is the recommended framework in React’s docs. In this article, we are going...

In the previous article, we talked about the possibility of transferring files via QR codes and built a demo web app. In this article, we are going to build a cross-platform version using Ionic Vue which can run on Android, iOS and Web. The mechanism is also improved by adding...

The term “augmented reality (AR)” generally refers to the integration of digital information with the user’s environment in real time. AR can make user interfaces more immersive and intuitive, overlaying real-time information onto the real world to make tasks more efficient and less error-prone. For example, in warehouse management, AR...

In the previous article, we built a simple barcode reader server in Python and deployed it on Vercel. In this article, we are going to deploy it on AWS Lambda to provide a serverless barcode reading interface. Getting started with Dynamsoft Barcode Reader New Function Create a new AWS Lambda...

In this article, we are going to talk about how to build a web app to scan ISBN barcodes to get the info of books and manage bills of books on Airtable. Airtable is a spreadsheet-database hybrid, with the features of a database but applied to a spreadsheet. It can...

The Raspberry Pi 4, with its enhanced performance and connectivity features, offers a myriad of possibilities for DIY enthusiasts and developers. One such application is turning this compact computer into a fully functional barcode scanner. In this article, we’ll guide you through the process of setting up a barcode scanner...

Recently, Dynamsoft rolled out C++ Barcode SDK v10.0. This version has been entirely re-written in C++, providing an entirely new suite of APIs for barcode reading. However, if you’re using MinGW(Minimalist GNU for Windows) to code with this SDK, such as integrating it into a Qt project, you may encounter...

In the previous article, we run a QR code scanner in React-Native-WebView on Android and iOS. React Native can also run in a web browser with React Native Web, which uses React DOM to accurately render React Native compatible JavaScript code in a web page. In this article, we are...

React Native is an open-source UI software framework to create apps mainly for Android and iOS. Apart from native components, we can also use React-Native-WebView to utilize web technologies. In this article, we are going to take about how to start a QR code scanner in React-Native-WebView. We can use...

Barcode scanner apps can be used across a variety of industries, including retail, manufacturing, logistics, and healthcare. They are used to track inventory, manage assets, and improve the efficiency of business operations. In this article, we will walk through the steps of building a multiple barcode and QR code scanner...

Jetpack Compose is Android’s recommended modern toolkit for building native UI. It simplifies and accelerates UI development on Android. In this article, we are going to create a QR code scanner to demonstrate how to use Dynamsoft Barcode Reader and Dynamsoft Camera Enhancer in Jetpack Compose. Here is a video...

As .NET MAUI continues to gain traction, numerous .NET developers are exploring ways to transition their existing desktop and mobile applications to this new framework. Previously, I developed a .NET MAUI application capable of scanning barcodes and QR codes from camera frames across Windows, Android, and iOS platforms. For reuse,...

Glide is a no-code app builder which makes it easy to create apps. Dynamsoft is a partner of Glide to provide it with the barcode scanning feature based on its barcode reading SDK. In this article, we are going to use Glide to create a demo app which scans barcodes....

A barcode is an optical, machine-readable, representation of data. There are different types of barcodes which are used in different contexts. EAN or UPC codes are printed on most items in stores. Code128 codes are used extensively in the shipping and packaging industries. QR codes have greater storage capacity and...

Last week, we demonstrated how to create a Windows .NET MAUI app that can access the USB camera using Blazor web view. Although this solution provides a way to access the camera, for a Windows desktop application that requires optimal performance, it is recommended to prioritize native camera APIs over...

.NET Multi-platform App UI (MAUI) is a cross-platform UI framework for building native and modern applications in C#. It allows developers to create a single codebase for multiple platforms. Blazor is a web UI framework for building interactive client-side web applications with .NET. It allows developers to write C# code...

Notion is an all-in-one workspace for us to use the computer. It is basically a note-taking app but it is more than that with great customizability. In this article, we are going to build a web app to scan ISBN barcodes to get the info of books and save them...

In my previous article, I demonstrated how to package C++ libraries into a NuGet package. This week, I’ll be expanding the package to include Android and iOS binding libraries, enabling multi-platform development across Windows, Linux, macOS, Android and iOS. The advantage of an all-in-one NuGet package is that you can...

A NuGet package is a single ZIP file that can be easily distributed and installed in Visual Studio projects. It typically includes compiled code (such as DLLs), as well as other resources, metadata, and configuration files. While NuGet packages are commonly used for .NET projects, they can also be used...

In the previous article, we’ve created an Oracle APEX application to scan documents. In this article, we are going to add barcode scanning function to the Oracle APEX application with Dynamsoft Barcode Reader. You can check out the video to see what it does. Build an Oracle APEX Application to...

Next.js is a flexible React framework that gives you building blocks to create fast web applications. It can pre-render your React app so that it is SEO-friendly. It supports several types of pre-rendering including server-side rendering or static generation, and updating or creating content at runtime with incremental static regeneration....

The official Flutter camera plugin is a useful tool for building camera scanning applications on Android, iOS, and web platforms. However, those who want to use it for Windows may be disappointed. Fortunately, there is a camera_windows plugin currently under development, located in the same repository as the Android, iOS,...

Near-field communication (NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 cm (11⁄2 in) or less.1 We can store the data in an NFC tag in the NDEF format and then put a phone with NFC support to read its...

In the previous article, we talked about how to scan documents in a FileMaker custom app using Dynamic Web TWAIN. In this article, we are going to add a barcode scanning function in a FileMaker custom app using Dynamsoft Barcode Reader. We embed an MQTT receiver web app in the...

In places like laboratories, we often need to scan a tray of multiple tubes with barcodes on the top (like the following image). The tubes may be used for Covid-19 PCR test. They need to be retrieved in reading order (from left to right and line by line from the...

Barcode scanning technology is crucial for many enterprises, such as those in the supermarket, logistics, and warehousing industries. The data obtained from scanning barcodes is used to track inventory, manage orders, and process payments. Handheld barcode scanners are widely used as peripheral devices in these industries. However, traditional handheld laser...

In scenarios like inventory management and checkout, we often need to get the barcodes into a PC device. We can use a handheld laser barcode scanner to scan the barcodes and send the results to a PC device via USB, Bluetooth or network. But as smartphones are ubiquitous now, we...

Flutter enables developers to create applications for desktop, mobile, and web from a single codebase. However, not all plugins are universally compatible with every platform. In this article, you will learn how to choose appropriate plugins to build a web-based barcode, QR code, and PDF417 scanner in Flutter. Although the...

Solidjs is a web framework like React. Instead of using techniques like virtual DOM, it compiles its templates to real DOM nodes and updates them with fine-grained reactions. In this article, we are going to build a barcode and QR code scanner using Solidjs. Dynamsoft Camera Enhancer is used to...

Barcode reading is a complex task with different challenging scenarios. To suit most scenarios, Dynamsoft Barcode Reader provides rich image processing parameters which users can adjust. There are two ways to adjust the parameters. One is via the code: // JavaScript example to set the barcode format to QR code...

In the previous article, we’ve built a NativeScript plugin for camera preview. In this article, we are going to create a NativeScript plugin for Dynamsoft Barcode Reader which can be used for scanning barcodes or QR codes. This article is Part 2 in a 2-Part Series. Part 1 - How...

Node-RED is a powerful flow-based programming tool built on Node.js that allows users to create applications by visually wiring together different nodes in a browser-based editor. In this article, you’ll learn how to create a custom barcode and QR code detection node using the Dynamsoft Barcode Reader, enhancing your Node-RED...

In the previous article, we demonstrated how to build a React Native QR code scanner using Vision Camera and the Dynamsoft Barcode Reader frame processor plugin. In this article, we are going to talk about how to build a barcode scanner using Expo. Expo is an open-source platform for making...

Raspberry Pi is an affordable single-board computer often chosen by developers for cost-effective IoT solutions, such as barcode and QR code scanning. It’s important to note that the CPU clock speed influences the decoding speed and accuracy. Dynamsoft Barcode Reader SDK, compatible with Raspberry Pi, excels in decoding multiple and...

Svelte is a web framework like React or Vue. Instead of using techniques like virtual DOM diffing, Svelte writes code that surgically updates the DOM when the state of your app changes. In this article, we are going to build a barcode and QR code scanner using Svelte. Dynamsoft Camera...

Quasar is a Vue.js-based framework, which allows web developers to quickly create responsive websites/apps, while Capacitor is a runtime for creating cross-platform iOS, Android, and Progressive Web Apps with JavaScript, HTML, and CSS. In this article, we are going to use the two to create a QR code scanner using...

Previously, we created a Xamarin.Forms Barcode QR code scanner for Android and iOS. Xamarin.Forms is not the end for developing cross-platform mobile apps in C#, because .NET MAUI is on the way. Microsoft mentions that .NET MAUI is the evolution of Xamarin.Forms, and it supports both mobile and desktop development....

If you try to port Xamarin mobile projects to .NET MAUI, you will find there is no problem with packages built for Xamarin Android, but packages built for Xamarin iOS are incompatible. To tackle this issue, you need to change target framework to .NET 6 and rebuild related packages. Dynamsoft...

In tasks like barcode scanning and text recognition, we often need to limit the scan region so that only the desired info is extracted. In this article, we are going to build a viewfinder web component as the following which shows which area will be processed. Stencil.js is used to...

In the previous article, we’ve built a React camera component. In this article, we are going to extend the camera component to create a React barcode and QR code scanning library using Dynamsoft Barcode Reader. Getting started with Dynamsoft Barcode Reader Create a React Barcode and QR Code Scanning Library...

Using the getUserMedia API, we can get the camera preview in a video element, which makes it possible to do computer vision tasks like barcode scanning in a browser. In this article, we are going to write a camera component for Vue using getUserMedia and build a barcode scanning demo...

Xamarin.Forms lets .NET developers create cross-platform mobile apps for Android and iOS in C#. This article demonstrates how to scan barcode and QR code from image file and live video stream using Xamarin.Forms Custom Renderers and Dynamsoft Barcode Reader SDK. In the end of this article, we will also demonstrate...

Web Components are a set of features that provide a standard component model for the Web allowing for encapsulation and interoperability of individual HTML elements. 1 We can define a custom element to use in any HTML environment, with any framework, or with no framework at all. Stencil is a...

Progressive web apps (PWA), simply to say, are web apps that running like native apps on the desktop and mobile platforms. The advantages of PWA include installable, discoverable, linkable and so on. In this article, I’m trying to give a snapshot of a simple PWA barcode reader project built with...

In the previous article, we’ve given a brief demonstration on how to use the capacitor-plugin-dynamsoft-barcode-reader to create a cross-platform QR code scanner using Ionic React. In this article, we are going to use Ionic Vue to create such a QR code scanner. Online demo Getting started with Dynamsoft Barcode Reader...

If you’re looking to build and test barcode and QR code scanner applications for embedded and IoT devices such as Raspberry Pi, Arduino, Jetson Nano, and others, having a physical device is not essential for development. This article demonstrates how to use the Dynamsoft Barcode SDK to create barcode and...

Noise in barcode images poses a challenge for successful barcode reading. There are many types of noise. Here are some examples: Patterned noise caused by bad printing or scanning.1 Image source Noise caused by taking a photo with digital cameras in low light.2 We can run image processing to improve...

The Ionic framework has shifted its native runtime from Cordova to Capacitor. But we can still create Ionic Angular projects based on Cordova. In this article, we are going to create an Ionic Angular QR code scanning app based on Cordova using the cordova-plugin-dynamsoft-barcode-reader and the ionic wrapper. Preview of...

iOS has added support for getUserMedia in WKWebView since iOS 14.3 and WebAssembly since iOS 11. So it is possible to use the JavaScript version of Dynamsoft Barcode Reader to scan barcodes and QR codes in WKWebView. In this article, we are going to build a demo app to illustrate...

Implementing a Python extension in C or C++ is easy, but building the native module into a Python wheel package for different operating systems and different Python versions is a nightmare. A CPython wheel package is Python-version-dependent, therefore, to make a CPython module work universally for Python 3.x, you have...

Google Chrome has getUserMedia support since v53 and WebAssembly support since v57, which makes it possible to use Dynamsoft Barcode Reader to scan barcodes and QR codes in the web context. The WebView component included in modern Android uses Chrome as its backend, so we can also run a barcode...

Dynamsoft Barcode Reader, as an enterprise-class barcode and QR code SDK, supports many platforms (Windows, Linux, macOS, Android, iOS, Raspberry Pi OS, and Web) and programming languages (Python, Java, Swift, C#, Cpp, and JavaScript). There are many sample projects distributed in Dynamsoft GitHub repositories and official website. To help developers...

In many barcode scanning situations, we only need to select one barcode while there are many other barcodes around it. How to avoid scanning unwanted barcodes and only get the barcode result we want? In this article, we are going to talk about ways to select one barcode from many....

In the previous article, we’ve talked about how to use the Barcode Detection API to create a web QR code scanner. However, not many browsers support the API. So in this article, we are going to write a polyfill for the Barcode Detection API with the JavaScript version of Dynamsoft...

The Web Platform Incubator Community Group has published a Shape Detection API specification. The API aims at detecting features like faces and QR codes from images. It is still in draft status and has limited browser support. In this article, we are going to use the Barcode Detection API included...

A few weeks ago, I released a .NET 6 BarcodeQRCodeSDK package implemented with Dynamsoft C/C++ Barcode SDK. This article demonstrates how to build a Windows desktop barcode and QR code scanner using .NET WinForms, OpenCvSharp, and BarcodeQRCodeSDK. This article is Part 4 in a 4-Part Series. Part 1 - How...

.NET MAUI is a cross-platform framework that allows developers to create desktop and mobile applications from a single codebase with C#. It is currently in preview and the production release is slated for Q2 2022. This article goes through the steps to build a .NET MAUI barcode and QR code...

The Ionic framework has shifted its native runtime from Cordova to Capacitor. But for compatibility concerns and the fact that there are many good Cordova plugins, we can still use Cordova plugins in an Ionic project. We can directly use Cordova plugins with the cordova object, but there is a...

Normally, we scan barcodes and QR codes from live camera streams or static images. But sometimes, we may need to read barcodes from video files, like scanning the barcodes on a long shelf and evaluating the performance of live scanning. A video contains rich information. A state-of-art mobile phone can...

Dynamsoft is the only provider of an enterprise-class Python Barcode and QR Code SDK for Windows, Linux, macOS, and Raspberry Pi OS. The SDK allows developers to quickly build robust command-line, web, and desktop applications that can scan barcodes and QR codes from a wide range of sources. In this...

If you need a JavaScript barcode and QR code scanner SDK, the Dynamsoft JavaScript Barcode SDK is no doubt the best. It allows developers to quickly build web barcode and QR code scanner applications with just a few lines of code. This article provides an in-depth look at the Dynamsoft...

On mobile platforms, HTML5 is not only supported by web browsers, such as Chrome, Edge, Safari, Firefox, and Opera, but also web view UI component that used for building native apps. Therefore, even though you are only familiar with web development, you can easily create excellent mobile apps for Android...

Microsoft is pushing .NET technologies to the next level. It is no doubt that .NET framework will be retired in the near future. This article aims to help C# developers to create Windows desktop barcode and QR code reader application using Dynamsoft Barcode Reader SDK. We will firstly create a...

Microsoft .NET 6 SDK empowers C# developers to build cross-platform DotNet applications for Windows, Linux, and macOS from one codebase. This article describes the steps to build a .NET 6 barcode and QR code decoding library based on Dynamsoft C/C++ Barcode SDK, as well as how to pack the library...

In the previous article, we’ve given a brief demonstration on how to use the capacitor-plugin-dynamsoft-barcode-reader to create a cross-platform QR code scanner using web technologies with Capacitor. In this article, we are going to take a step further to create an Ionic React QR Code Scanner. Online demo on netlify:...

In a previous article, we explored how to create a command-line barcode and QR code scanning application using Java and the Dynamsoft Barcode Reader. This article will delve into building more sophisticated applications, such as a desktop GUI application and a web application. Additionally, we will integrate the ZXing SDK...

There are many open-source and commercial barcode SDKs, but only a few can recognize multiple barcodes and QR codes simultaneously. When you search for “barcode SDK” or “Java barcode SDK” on Google, the Dynamsoft Barcode Reader SDK consistently appears in the top 5 search results. This article guides you through...

Dynamsoft Barcode Reader SDK supports development of barcode and QR code scanning applications for desktop, mobile and web platforms. The version 9.0 of the SDK is coming to all platforms in the following weeks. The C++ SDK is available for download today. As an enterprise-class C++ barcode and QR code...

In the previous series articles, we’ve created a react-native-vision-camera frame processor plugin of Dynamsoft Barcode Reader to scan barcodes. In this article, we are going to build a QR Code scanner using this plugin to better illustrate how to use it. A preview of the final result: The app consists...

Barcodes and QR codes are essential tools across various industries, including healthcare, finance, and education. In this article, we’ll explore how to leverage Dynamsoft’s powerful barcode recognition technologies to create an online barcode and QR code scanning application using Python Django. This article is Part 6 in a 11-Part Series....

In the previous article, we’ve created a React Native Vision Camera frame processor plugin for Dynamsoft Barcode Reader (DBR). Let’s continue to create the frame processor plugin for iOS. This article is Part 2 in a 3-Part Series. Part 1 - Build a React Native Vision Camera Frame Processor Plugin...

The previous popular react-native-camera project is now deprecated in favor of react-native-vision-camera. Vision Camera offers new APIs, better performance, improved stability and more features. It has a feature called Frame processors, which makes it easy to integrate extra image processing abilities. We are going to create a frame processor plugin...

I conducted an experiment to evaluate QR code detection performance using YOLOv4 on Android. The results showed that running the YOLOv4 model on the CPU took over 100ms per inference, which fell short of my expectations. To improve inference speed, I decided to leverage the Android Neural Networks API (NNAPI)...

In my previous article, I demonstrated how to create a simple Android QR code scanner. Building on that foundation, I’m taking things a step further by integrating the YOLOv4 Tiny model that I trained specifically for QR code detection into the Android project. But how effective is YOLO Tiny for...

Note: This article talks about how to build a QR code scanner native UI component for React Native. If you need to use Dynamsoft Barcode Reader in a React Native project for production, please use the official Dynamsoft Capture Vision SDK. React Native is an open-source UI software framework made...

A QR code scanner application is fundamentally composed of two key components: the camera preview and the QR code scanning functionality. While there are numerous QR code scanner apps available for download on the Google Play Store, building your own can be a more rewarding and educational experience. This article...

Jupyter notebook is a web-based interactive computing environment that enables you to create and share documents that contain live code, equations, visualizations and narrative text. If you have installed Anaconda, Jupyter notebook is installed by default. This article demonstrates how to write Python code to scan barcodes in Jupyter notebook....

Dynamsoft Barcode Reader SDK allows developers to customize algorithm parameters against different barcode scanning scenarios. There are some pre-configured parameter templates for decoding performance. No matter you pursue ultimate decoding speed, ultimate decoding accuracy, or the tradeoff between speed and accuracy, there is always an appropriate one. Since the parameters...

Capacitor is an open source native runtime created by the Ionic team for building Web Native apps. We can use it to create cross-platform iOS, Android, and Progressive Web Apps with JavaScript, HTML, and CSS.1 As an alternative to Cordova, Capacitor delivers the same cross-platform benefits, but with a more...

Apache Cordova is a tool to create cross-platform apps from standard web technologies (HTML, CSS, and JavaScript). Its primary purpose is to provide a bridge for native device API access and to bundle for distribution.1 In this article, we are going to use Cordova to build a QR code scanner...

ZeroMQ is a high-performance asynchronous messaging library, aimed at use in distributed or concurrent applications. It supports common messaging patterns (pub/sub, request/reply, client/server and others) over a variety of transports (TCP, in-process, inter-process, multicast, WebSocket and more), making inter-process messaging as simple as inter-thread messaging. 1 ZeroMQ can be used...

Scalable Vector Graphics, SVG, is a W3C XML dialect to mark up graphics1. SVG can be created dynamically with JavaScript and injected into the HTML DOM2. Using SVG, it is very easy to draw a graphics in a web page. Below is a polygon example: <svg width="100" height="100" version="1.1" xmlns="http://www.w3.org/2000/svg">...

In everyday life, we often use our smartphones to scan QR codes. However, when working on a computer, using a smartphone isn’t always the most convenient option for scanning QR codes that appear on your screen. Photos taken from monitors can have Moiré patterns, which can interfere with QR code...

QR code is useful to transfer data across different devices. An Android device can exchange data with an iOS device through a QR code. It does not require setting up a wireless network and does not have the hassle of pairing using Bluetooth. As it is a screen-camera solution, it...

Image annotation is a key step in deep learning. It prepares the data for tasks like image classification, object detection, semantic segmentation, etc. For image classification, we only need to annotate the label. For object detection, we also need the bounding box and for segmentation, we need to annotate objects...

QR Code is widely used in our everyday life. As a two-dimensional barcode, it can store more data than 1D barcodes. It can be captured using a camera and then be decoded using image processing methods. Reading QR codes in the real world is a challenging job. For example, the...

Motion detection can detect whether there is a change in the positions of objects. It can be achieved by many methods. For example, infrared light or laser technology can be used for optical detection. As for image processing methods, there is a basic one by a fixed camera, which compares...

Dynamsoft Camera Enhancer (DCE) provides high-level APIs for developers to quickly create a camera application, such as a barcode scanner and a text scanner. The API surface works across most Android and iOS devices. While it leverages the capabilities of Android’s Camera2 and iOS’s AVCaptureSession, it is much easier to...

The Flutter barcode SDK series is coming to the end. This week, we switch the coding environment to macOS to finish the rest of the plugin platforms - iOS and macOS - using Swift. This article is Part 5 in a 5-Part Series. Part 1 - How to Implement Flutter Barcode Scanner for Android...

In the B4X developing suite, B4J is used to develop desktop apps based on JavaFX or server apps based on Jetty. By default, it cannot be used to create web applications without a server. A third-party library, BANano, makes this possible. It can transpile everything you write in B4J to...

This article is Part 2 in a 3-Part Series. Part 1 - Cross-Platform Barcode Reader with B4X Part 2 - B4X Live Barcode Scanner | Scan QR Codes From Camera Stream Part 3 - Web Barcode Reader using B4X In the previous article, we created a Dynamsoft Barcode Reader library...

For the past several weeks, the Flutter plugin of Dynamsoft Barcode Reader has covered Windows, Android and Web. This week, we go through the plugin implementation for Linux. Similar to Windows, we combine Dart and C++ code for Linux. The unexpected thing is the C++ data types of Flutter defined...

B4X is a set of rapid development tools which can be used to develop apps for all the major mobile and desktop platforms. It has four products: B4A, B4i, B4J and B4R, which aim at Android, iOS, Java (desktop with JavaFX, server and Raspberry Pi) and Arduino development. Apart from...

Let’s continue discussing scanning QR codes at a distance. In this article, we’ll talk about resolution. Using the camera’s highest resolution Most of the current smartphones’ video stream resolution can be set to 1080P (Full HD) and many of them support 4K (Ultra HD) video capturing. The higher the resolution...

This week, I made a new attempt, integrating Dynamsoft JavaScript Barcode SDK into the ongoing Flutter barcode plugin project. It is exciting to be capable of building web barcode reader apps with the same decodeFile() method used for mobile and desktop development. This article is Part 3 in a 5-Part...

About two years ago, I wrote an article sharing how to build a Flutter barcode plugin with Dynamsoft Barcode Reader step by step. At that time, Flutter was still under development and only supported Android and iOS. Nowadays, Google has released Flutter 2, which allows developers to build apps for...

Camera control and barcode reading are two essential parts of a barcode scanner. Dynamsoft Barcode Reader is an advanced barcode reader with an easy-to-use Android library. The implementation of the barcode reading function is simple and straightforward. Making a good camera app, however, is not easy. In Android, there are...

Originally designed for the automotive industry1, QR code (abbreviated from Quick Response code) has become popular in various usage scenarios. QR codes can encode richer content than 1D barcodes, from website URLs to even a small image. They can be displayed on screens and printed on posters, package boxes, etc....

Qt Designer is a powerful tool for creating cross-platform graphical user interfaces (GUIs) using Qt widgets. In this guide, we’ll use Qt Designer to develop an advanced GUI for a Python-based barcode and QR code reader, leveraging the Dynamsoft Python Barcode SDK. This application will be compatible with Windows, Linux,...

Apple announced new Mac models with Apple M1 chip recently. Although Dynamsoft has not released an Apple Silicon version of Dynamsoft Barcode Reader SDK yet, I am curious how will x86_64 barcode SDK perform under Rosetta 2. In this article, I will build a simple command-line QR Code reader app...

In the past two weeks, I trained a custom YOLOv3 model specifically for QR code detection and tested it using Darknet. In this article, I will demonstrate how to use OpenCV’s DNN (Deep Neural Network) module to load the YOLO model for detecting QR codes from static images and real-time...

In my previous article, I shared how to integrate Dynamsoft Barcode Reader to LabelImg for annotating barcode objects. It is time to take a further step to make some custom models for barcodes. In this article, I will go through the process that I used Darknet to train YOLO v3...

Learn how to effortlessly set up a C/C++ barcode and QR code reader for Raspberry Pi using the Dynamsoft Barcode Reader SDK. This guide is optimized for Raspberry Pi 4 but is compatible with both ARM32 and ARM64 Raspberry Pi OS. This article is Part 1 in a 16-Part Series....

ZXing is an open-source, 1D/2D barcode image processing library implemented in Java. The supported barcode formats include UPC-A, UPC-E, EAN-8, Code 93, Code 128, QR Code, Data Matrix, Aztec, PDF 417, etc. Besides the Java version, developers can leverage other ported projects such as QZXing, zxing-cpp, zxing_cpp.rb, python-zxing and ZXing...

This article aims to share how to use the QR code plugin to implement a free online app with Google App Engine. How to Implement QR Code Generator Download jQuery QRCode plugin. Download JavaScript UTF-8. Create a project named qrcode, and create a file called qrcode.html. Include plugins: <script src="js/jquery.min.js"></script>...

Barcode scanning, especially QR code scans, are now widely used in various applications. This includes advertisements, newspapers, social networks, signage, and so on. The growth of QR codes is in large part due to the smartphone market’s booming growth. As a result, scanning technology tends to be more and more useful...