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QR code generation
L
M
Q
H
—
ECC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
— Zoom
0
1
2
3
4
5
6
7
8
— Border
Notes about ECC level
L — 7% of codewords can be restored
M — 15% of codewords can be restored
Q — 25% of codewords can be restored
H — 30% of codewords can be restored
