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Table 4 The average secret capacity under different QR versions and error correction levels, iterations = 100

From: High payload secret hiding technology for QR codes

QR version Embedded secret capacity (bits)
L M Q H
1 50 83 97 72
5 215 396 496 368
10 613 1086 1232 976
15 1088 2024 2360 1784
20 1853 3474 3880 3080
25 2596 4903 5744 4304
30 3735 6752 7880 5960
35 4751 8887 10,288 7888
40 6249 11,445 13,328 10,208