![]() Note: if you have installed OpenCV, you can skip the OpenCV compilation process. ![]() I chose to create a new independent Python 3 virtual environment, then installed OpenCV and named the environment barcode: $ mkvirtualenv barcode -p python3 Virtual environment is a very practical approach for Python development, and I highly encourage the use of virtual environment. Or create a new independent virtual environment and install OpenCV. Here you have two choices: use the ready-made virtual environment with OpenCV installed (skip this step and see Step 3). Step 2: create a virtual environment and install OpenCV. It is also easy to install Zbar in macOS system using brew (assuming you have installed Homebrew): $ brew install zbar Install Zbar on Ubuntu or raspberry pie $ sudo apt-get install libzbar0 Step 1: install Zbar from apt or brew Library Install the required software in three simple steps. Use Python 3 (the official Zbar Python binding only supports Python 2.7) to accurately detect and locate QR codes and barcodes in images The Zbar installation part of this article is basically based on the guidance of this blog, but some improvements have been made, mainly focusing on the installation of Python Zbar binding. Some time ago, Staya Mallick published a practical tutorial on the learnopuncv blog, explaining how to scan bar codes with Zbar. Install Zbar (with Python binding) for decoding barcode & QR code Finally, I will show how to deploy the real-time QR Code & bar code scanner to raspberry pie.After practicing, we will enter the next stage: read the QR code and bar code in real time with OpenCV and Zbar. First identify the barcode and QR code on an image.After properly configuring Zbar and OpenCV, I will show how to use them to scan the barcode and QR code on an image.The Zbar library will be used with OpenCV to scan barcodes and QR codes.In the first part, I will teach you how to install the Zbar Library (Python binding).This paper is mainly divided into four parts. Moreover, I will also show how to deploy our barcode QR code scanner to raspberry pie!!Ĭreate a barcode and QR code scanner with OpenCV and ZBar In this article, I will teach you how to read bar codes and QR codes with OpenCV and Zbar. The library Zbar has also derived many variants, of which pyzbar is my favorite. In fact, the whole process is quite simple and clear. OpenCV can then perform further image processing and display the results. ![]() Zbar then decodes the barcode or QR code. After we get the image or video frame, we can transfer it to the special barcode decoding library in Python, such as Zbar. However, OpenCV can speed up the process of reading barcode and QR code, including loading images from the hard disk, grabbing new frames from the video stream and processing them. Recently, a friend asked me if there are any modules in OpenCV that can directly identify bar codes and QR codes. Finally, he deployed it on raspberry pie and successfully made a practical bar code & QR code scanning device. Computer vision expert Adrian roserock recently shared how to write a scanning program that can recognize QR code and bar code in real time with the help of OpenCV and Zbar. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |