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Table 2 Zone densities for ideal resized bordered characters

From: Optical character recognition on heterogeneous SoC for HD automatic number plate recognition system

Zone Densities of the digits
0 1 2 3 4 5 6 7 8 9
Zone 1 96 74 56 55 46 135 117 73 106 99
Zone 2 94 177 101 108 30 64 78 104 113 101
Zone 3 95 0 100 62 84 66 96 69 109 83
Zone 4 95 170 73 111 104 95 94 12 104 117