4 ms·
Same. I always marvel at how my phone can decode a badly lit, blurry, 1/4 out of frame QR code as quickly as it does.
by smitelli 2y ago
Same. I always marvel at how my phone can decode a badly lit, blurry, 1/4 out of frame QR code as quickly as it does.
- bb88 2y agoMy first instinct would be to go look at the discrete cosine transform that JPEG uses. But I don't know how to do the other parts like aligning and using the timing patterns.