Unfortunately, OpenCV does not contain built-in barcode detection + reading functionality… The other piece is decoding the barcode into a useful string. In a previous post here on PyImageSearch, I demonstrated how to detect barcodes with Python and OpenCV. Given the prominence of cameras in today’s age, we can actually use image processing to detect and decode barcodes. Check out this post by Chris Woodford on Barcodes and barcode scanners. Typical barcode readers use a photoelectric cell to “see” the code. It’s therefore important that barcodes are decoded properly so that databases can be updated. Simply put, barcodes are an easy way for computers to associate an item with a database. And heaven forbid, the a barcode could be associated with your identity on a hospital wristband during an emergency visit! Every time you board an airplane or rent a car, barcodes are used. There’s no way of getting around barcodes in today’s world.Įvery grocery item or Amazon package you receive has them. Looking for the source code to this post? Jump Right To The Downloads Section Reading barcodes with Python and OpenMV Figure 1: The OpenMV can read QR codes among many types of codes - all with built in libraries! To get started with the OpenMV cam and barcode decoding with computer vision, just keep reading. In today’s blog post, you’ll be introduced to OpenMV, their fancy IDE, and we’ll even build your own barcode scanning system. When I started building the barcode scanning system for this post I was incredibly impressed by the responsiveness of their users and forums. You’ll definitely have the support needed to make your project a success. Given the success of OpenMV so far, perhaps it’s no surprise that there is an active community of developers. Since the OpenMV Kickstarter, the OpenMV team has been on a mission to provide a low cost, Python-ready, and easy to use camera system for developers and engineers working on embedded computer vision projects. Kwabena’s Kickstarter raised a lot more funds than mine, which really demonstrates (1) the value of the OpenMV product and (2) the eagerness of the embedded community to work with such a tool. At that time, Kwabena and the OpenMV team were running a Kickstarter of their own. I met Kwabena Agyeman, the founder of OpenMV, during the PyImageSearch Gurus Kickstarter campaign in January 2015. And can be expanded with shields just like an Arduino/RPi.What if I said that there’s a camera that: Click here to download the source code to this post
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