TheXamlGuy
37 lines
709 B
C#
37 lines
709 B
C#
using System;
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namespace Gma.QrCodeNet.Encoding.Masking.Scoring;
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/// <summary>
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/// ISO/IEC 18004:2000 Chapter 8.8.2 Page 52
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/// </summary>
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internal class Penalty4 : Penalty
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{
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/// <summary>
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/// Calculate penalty value for Fourth rule.
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/// Perform O(n) search for available x modules
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/// </summary>
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internal override int PenaltyCalculate(BitMatrix matrix)
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{
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int width = matrix.Width;
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int darkBitCount = 0;
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for (int j = 0; j < width; j++)
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{
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for (int i = 0; i < width; i++)
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{
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if (matrix[i, j])
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{
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darkBitCount++;
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}
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}
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}
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int matrixCount = width * width;
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double ratio = (double)darkBitCount / matrixCount;
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return Math.Abs((int)((ratio * 100) - 50)) / 5 * 10;
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}
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}
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