public byte CalculateAdaptiveVerticalThreshold(HistogramModes histogramMode)
{
int[] array = null;
byte min = 0;
byte max = 0;
switch (histogramMode)
{
case HistogramModes.Intensity:
array = Intensity;
min = IntensityMin;
max = IntensityMax;
break;
case HistogramModes.Red:
array = Red;
min = RedMin;
max = RedMax;
break;
case HistogramModes.Green:
array = Green;
min = GreenMin;
max = GreenMax;
break;
case HistogramModes.Blue:
array = Blue;
min = BlueMin;
max = BlueMax;
break;
default:
array = Intensity;
min = IntensityMin;
max = IntensityMax;
break;
}
byte previousThreshold = 0;
byte threshold = Calculations.ClampToByte((max - min) / 2);
while (previousThreshold != threshold)
{
byte lessAverage = CalculateAverageByte(array, min, threshold);
byte greatAverage = CalculateAverageByte(array, Calculations.ClampToByte(threshold + 1), max);
previousThreshold = threshold;
threshold = Calculations.ClampToByte((lessAverage + greatAverage) / 2);
}
return(threshold);
}
private void ChangeHistogramMode()
{
HistogramMode = (HistogramModes)histogramModeComboBox.SelectedIndex;
switch (HistogramMode)
{
case HistogramModes.Intensity:
histogramChart.Stroke = new SolidColorBrush(Colors.Black);
histogramChart.Color = histogramChart.Stroke;
histogramChart.Description = "Intensity";
histogramChart.Plot(Histogram.enumerationX, Image.ImageHistogram.Intensity);
horizontalThresholdSlider.Maximum = Image.ImageHistogram.IntensityMaxValue;
break;
case HistogramModes.Red:
histogramChart.Stroke = new SolidColorBrush(Colors.Red);
histogramChart.Color = histogramChart.Stroke;
histogramChart.Description = "Red";
histogramChart.Plot(Histogram.enumerationX, Image.ImageHistogram.Red);
horizontalThresholdSlider.Maximum = Image.ImageHistogram.RedMaxValue;
break;
case HistogramModes.Green:
histogramChart.Stroke = new SolidColorBrush(Colors.Green);
histogramChart.Color = histogramChart.Stroke;
histogramChart.Description = "Green";
histogramChart.Plot(Histogram.enumerationX, Image.ImageHistogram.Green);
horizontalThresholdSlider.Maximum = Image.ImageHistogram.GreenMaxValue;
break;
case HistogramModes.Blue:
histogramChart.Stroke = new SolidColorBrush(Colors.Blue);
histogramChart.Color = histogramChart.Stroke;
histogramChart.Description = "Blue";
histogramChart.Plot(Histogram.enumerationX, Image.ImageHistogram.Blue);
horizontalThresholdSlider.Maximum = Image.ImageHistogram.BlueMaxValue;
break;
}
}
