private void DrawChannels(PaintEventArgs e)
{
using (GraphicsCache cache = new GraphicsCache(e)) {
Point center = new Point(Width / 2, Height);
for (int i = 0; i < 256; i++)
{
int max = (int)HistogramRgb.GetMax();
int normValue = 100;
int r = (int)(normValue * HistogramRgb.HistogramValues[2][i] / max);
int g = (int)(normValue * HistogramRgb.HistogramValues[1][i] / max);
int b = (int)(normValue * HistogramRgb.HistogramValues[0][i] / max);
int grayLevel = 0;
int twoColorMixLevel = 0;
if (r <= g && r <= b)
{
grayLevel = r;
if (g > b)
{
twoColorMixLevel = b;
cache.DrawLine(new Point(i, Height - twoColorMixLevel), new Point(i, Height - g), hGreenColor, 1);
}
else
{
twoColorMixLevel = g;
cache.DrawLine(new Point(i, Height - twoColorMixLevel), new Point(i, Height - b), hBlueColor, 1);
}
cache.DrawLine(new Point(i, Height - grayLevel), new Point(i, Height - twoColorMixLevel), hGBColor, 1);
}
if (b <= g && b <= r)
{
grayLevel = b;
if (g > r)
{
twoColorMixLevel = r;
cache.DrawLine(new Point(i, Height - twoColorMixLevel), new Point(i, Height - g), hGreenColor, 1);
}
else
{
twoColorMixLevel = g;
cache.DrawLine(new Point(i, Height - twoColorMixLevel), new Point(i, Height - r), hRedColor, 1);
}
cache.DrawLine(new Point(i, Height - grayLevel), new Point(i, Height - twoColorMixLevel), hGRColor, 1);
}
if (g <= b && g <= r)
{
grayLevel = g;
if (b > r)
{
twoColorMixLevel = r;
cache.DrawLine(new Point(i, Height - twoColorMixLevel), new Point(i, Height - b), hBlueColor, 1);
}
else
{
twoColorMixLevel = b;
cache.DrawLine(new Point(i, Height - twoColorMixLevel), new Point(i, Height - r), hRedColor, 1);
}
cache.DrawLine(new Point(i, Height - grayLevel), new Point(i, Height - twoColorMixLevel), hRBColor, 1);
}
cache.DrawLine(new Point(i, Height), new Point(i, Height - grayLevel), hRGBColor, 1);
}
}
}
