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Python qr code reader youtube3/16/2023 ![]() Simply run this command - pip install -U numpy. If this error arises, try to upgrade the NumPy library. □" ImportError: failed to import" Solution You may get certain error messages while running the program. ☛fontScale(0.9): It's a font scale factor, multiplied by font-specific base size. By default, it appears in the top-left corner. Org - coordinates of the Bottom-left corner of the text string in the image. ☛cv2.putText() : It draws the text(represents the data behind the QR Code) on the image. Lines_color - polyline color in BGR format. isClosed - Indicates whether the drawn poly-lines are closed. Image - On this image, the polygon(square) would be drawn. A guide on how to generate QR codes in Python using the pyqrcode module. ☛cv2.polylines(): This method is used to draw a polygon on any image. ☛pts.reshape(): This function shapes an array without changing the actual data. There are more color options, you can get the details from here. ☛cv2.cvtColor(): It converts an image from one color space to another color. Print("The Data is: " + BarCodeData +" & the Type is: " + BarCodeType) # read qr codes (detect and decode qr codes)Ĭv2.putText(image, the_text, org, font, 0.9, text_color, 2) OpenCVĬv2.polylines(image,, isClosed, line_color, thickness) Use pip3 instead of pip if you're using Linux. Then, install these libraries given below. This Python library is also used to work with multidimensional arrays that we are going to use in today's topic.įirst of all, it's a must to be Python 3 installed on Your machine. NumPy array is used in Python to work with scientific computing. The pyzbar library is used to read one-dimensional barcodes and QR codes. OpenCV is an open-source library, widely used in artificial intelligence, computer vision, and machine learning. If your phone does not have a QR Code reader, there are a plethora of options in the app stores that are easy to download and use with just the touch of a. We'll use three python libraries here, OpenCV, pyzbar, and NumPy. ☛ Learn Also: How to Generate and Decode QR Code in Python A simple qr code can be generated by using the make function of qrcode. ![]() ![]() Full documentation of the package can be accessed in PYPI homepage of the package. The first step is installing the package using pip command. There are many third-party applications on the web that serve as a platform where we can scan a QR code directly.īut, in this tutorial, we are gonna create our own QR code scanner in python that will decode barcodes and QR codes both from an image through the Webcam of our computer or laptop. Install QR Code module We will be using qrcode package for generating QR code. Normally, we scan QR codes in a photo with the help of a mobile camera or some kind of external device. ![]()
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