public void Histogram(int gmax, int gmin, string selector)
{
float[] frequency = FrequencyDistribution();
int brightness, g;
float f;
int count = 0;
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
brightness = (int)(originalImage.GetPixel(i, j).GetBrightness() * 255);
g = 0;
f = 0;
for (int k = 0; k < brightness; k++)
{
f += frequency[k];
}
switch (selector)
{
case "uniform":
g = (int)((gmax - gmin) * f + gmin);
break;
case "degree":
g = (int)(Math.Pow(((Math.Pow((double)gmax, 0.333d) - Math.Pow((double)gmin, 0.333d)) * f + Math.Pow((double)gmin, 0.333d)), 3.0d));
break;
case "hyperbolic":
if (gmin == 0)
{
gmin = 1;
}
g = (int)((double)gmin * Math.Pow(((double)gmax / (double)gmin), f));
break;
}
if (g > 200)
{
count++;
}
if (g < gmin)
{
g = gmin;
}
if (g > gmax)
{
g = gmax;
}
alteredImage.SetPixel(i, j, Color.FromArgb(g, g, g));
}
}
alteredImageBox.Image = alteredImage;
HistogramForm hf = new HistogramForm(GetBrightness(originalImage), GetBrightness(new Bitmap(alteredImage)));
hf.ShowDialog();
}
private void showHistogramsToolStripMenuItem_Click(object sender, EventArgs e)
{
HistogramForm hf = new HistogramForm(GetBrightness(originalImage), GetBrightness(alteredImage));
hf.ShowDialog();
}
