Once we press button ‘e’ to exit from the barcode reading process, the application adds the cost of every purchased item and display the final cost of shopping. For each scanned item, application records purchase date, purchased item ID and item cost. For example, data of barcode for the item calculator is set as C4 where ‘C’ is considered the item ID ( Calculator) and ‘4’ as the item cost in $. The data (cost of the product) encrypted in the barcode is a combination of product name and its cost.
#Qr code reader webcam install#
Therefore, before executing program make sure that you have installed pyzbar which can be installed using pip as pip install pyzbarįor rest of the process, please download complete code from GitHub repository and follow steps as mentioned in readme. All these steps are taken care of by decode object of pyzbar. After the morphological operation, a contour is drawn around the barcode. Then an adaptive threshold is used to obtained processed image. Bilateral filter or Gaussian filter can be used for this purpose. The script initializes live video stream and extracts each frame from the video. Here, i have developed a python application to read barcode that i have created and decode data from that using webcam.
So, in this way you can also create your own bar codes of products for your shopping store. Generated barcode using python scripts is shown in Figure 2.įigure 4: Barcode stick on products under consideration You can change standard as per for choice. >import barcode >EAN = barcode.get_barcode_class('ean13') >ean = EAN(u'5901234123457') >fullname = ean.save('ean13_barcode')Ībove code will save barcode in European Article Number (EAN) standard. png with minor changes in the following code which is taken from here. Once you install pyBarcode, run following four lines of code to create barcode image. To install pyBarcode use pip as pip install pyBarcode It can provide EAN-8, EAN-13, EAN-14, UPC-A, JAN, ISBN-10, ISBN-13, ISSN, Code 39, Code 128, PZN types of standard barcode. Now a days, there are many standard libraries available in python to create barcode. Developed system is found to be cost effective, durable, easy to use, fully automated the billing process i.e don’t require human effort to scan barcode. In this article, a barcode scanner using python has been developed which can read barcode of the product using webcam, decode the cost of item which is encrypted in barcode and calculate the price of the product, finally at the end of shopping you will get number of items you have purchased, date of purchasing, name of items purchased and the corresponding cost. Therefore, it became necessary to develop such a system which can automate the process of scanning the products and comes at low cost with low maintenance requirement.
changes and durability is also an issue with this barcode scanner machine. Another problem with this is, it comes at a high cost.
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