Probably loads less then you would need for signage. I reckon you could get away with no redundancy if you went with a large enough base size on the grid.
You can go as far as replacing the square “pixels” with circular dots and it still reads fine, qr codes are kind of amazing.
Wonder what an appropriate error correction level would be for QR tattoo
Probably loads less then you would need for signage. I reckon you could get away with no redundancy if you went with a large enough base size on the grid.
You can go as far as replacing the square “pixels” with circular dots and it still reads fine, qr codes are kind of amazing.
Awesome!