It has mainly three member functions, which will be introduced in the following. While coding, we firstly need to create a cv::barcode::BarcodeDetector object. Several algorithms were introduced for bar code recognition. Most of the common goods in life use EAN-13 barcode.įor more detail see EAN - Wikipedia BarcodeDetector The EAN-13 bar code is based on the UPC-A standard, which was first implemented in Europe by the International Item Coding Association and later gradually spread worldwide. For current work, we only support EAN13 encoding method.
Install Flask: pip3 install flask Install OpenCV 3.3.
Setting Up Environment Download Python 3.5.
#DUPLICATE SCANNER DARKLY IN OPENCV HOW TO#
In this post, I want to share how to use OpenCV-Python to create a web document scanner step by step. The content of bar code can be decoded by matching with various bar code encoding methods. If you are interested in these computer vision technologies, you can use OpenCV to create a free document scanner app yourself. Bar code recognition is to scan the bar code in the horizontal direction to get a string of binary codes composed of bars of different widths and colors, that is, the code information of the bar code. We will learn how to run this in real-time and how we can save these images by. A common bar code is a pattern of parallel lines arranged by black bars and white bars with vastly different reflectivity. In this video, we are going to create a simple document scanner using OpenCV. We will familiarize with the bar code detection and decoding methods available in OpenCV.īar code is major technique to identify commodity in real life.
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