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The problem is that QR codes are not information dense enough to encode large amounts of data efficiently. I have been trying to build something similar to this
by rfd4sgmk8u 5y ago
The problem is that QR codes are not information dense enough to encode large amounts of data efficiently. I have been trying to build something similar to this and using various encoding methods. So far, I have trouble getting more than about 64k on a printed page such that it can be optically recognized. The number of symbols in your encoding alphabet is important, and this reduces recognition.
I like this project and gives me some ideas on how to enhance my solution.
Thank you!
- cyphar 5y agoThe issue is that when I tested out various more dense solutions (DataMatrix, colour QR codes, or HCCB) I discovered that they are difficult to scan with most mobile scanners, meaning that while you can theoretically get fairly high data density on paper (no pun intended), you will struggle to actually reconstruct the original data. But if you've figured out how to get even more density without making it difficult to practically read the data from the document I'd be very happy to hear about it and would gladly switch to that instead.