putText(image, display_message, (rect_points, rect_points), cv2. decode( 'utf-8')ĭisplay_message = "Access Granted" polygon_points = np. We will start by importing the needed libraries and setting up the webcam camera for video capture. Now, let us implement that by building an authentication and identification system to detect authorized and unauthorized personnel. ![]() Most employees in various companies and students in schools get access to specific areas by scanning their identification cards or special entry cards to grant them access. On testing it out on real-life objects, sample outputs are displayed as shown below for both QR and Barcodes: putText(image,encoded_text,(rect_points,rect_points),cv2. To use the libraries, we will import them using the commands below:Įncoded_text = barcode. We will also need the NumPy library to work with multi-dimensional arrays and matrices. To decode the codes, we will use the pyzbar and zbar libraries. To scan the QR codes, we will use the OpenCV library to read the input images and video streams and display the outputs. Sharing photos, links, media, phone numbers.Payment information can be shared across the retail and manufacturing industries by sharing payment information.Authentication systems for user identification.Inventory tracking and management systems.With the popularity of QR Codes, they have found their applications in various real-world fields, such as: Encoding Region (Cell): Data, parity modules, and decoding information are all stored in this area.This margin space is needed for the reading of the QR Code, while the data will be stored in the data area of the symbol. Quiet Zone: This is a region free of all markings.Timing Pattern: These patterns are arranged in both horizontal and vertical positions to identify the central coordinate of each data cell and correct the central coordinate at a time of distortion.Alignment Pattern: It comprises a single central module, light (3x3), and dark (5x5) modules, and acts as a correction pattern that corrects the distorted QR Code.They are easily detected in all directions and ease the location and identification of the QR Code size, position, and inclination. Finder Pattern: This pattern is found in the symbol’s upper left, upper right, and lower left corners.QR codes consist of various regions that have specific importance: ![]() This makes them more widely used than the conventional bar codes since the barcodes store limited data and can only be scanned horizontally. It efficiently encodes a large amount of data such as numbers, letters, and characters and can be read much faster in both horizontal and vertical positions than existing methods. This data can be decoded to expose the encoded information. The Quick Response Code (QR Code) is a type of two-dimensional barcode mainly used for keeping track of items and storing data in pixel form.
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