public void HistogramSpecification(String dir, double[] ho, Bitmap bmpo)
{
OpenImage(dir);
int m = 256;
double[] po = new double[m];
double[] pr = new double[m];
/*
if ((bmpo.Width != width_) || (bmpo.Height != height_))
{
for (int i = 0; i < m; i++)
{
po[i] = ho[i] / (bmpo.Height*bmpo.Width);
pr[i] = R_[i] / (width_ * height_);
}
}
for (int i = 1; i < m; i++)
{
po[i] = (ho[i] + po[i - 1]) ;
pr[i] = (R_[i] + pr[i - 1]);
}
*/
double n1 = 0; // imagen original
double n2 = 0; // imagen referencia
for (int i = 0; i < 256; i++)
{
n1 += ho[i];
n2 += R_[i];
}
double c1 = 0;
double c2 = 0;
for (int i = 0; i < 256; i++)
{
c1 += ho[i];
c2 += R_[i];
po[i] = c1 / n1;
pr[i] = c2 / n2;
}
double[] lut = new double[256];
int j = m - 1;
for (int i = 0; i <= 255; i++)
{
j = m - 1;
do
{
lut[i] = j;
j--;
} while ((j>=0) && (po[i] <= pr[j]));
}
ImageForm SpecificationImage = new ImageForm();
SpecificationImage.MdiParent = this.MdiParent;
Bitmap SpecificationBmp= new Bitmap(bmpo);
for (int x = 0; x < bmpo.Width; x++)
{
for (int y = 0; y < bmpo.Height; y++)
{
int temp = (int)lut[bmpo.GetPixel(x, y).R];
Color Grey = Color.FromArgb(temp, temp, temp);
SpecificationBmp.SetPixel(x, y, Grey);
}
}
SpecificationImage.AssignAtributtes(SpecificationBmp);
SpecificationImage.Show();
}
public void Ecualization()
{
double k = (width_ * height_)/256;
double[] C = new double[256];
double[] lut = new double[256];
C[0] = R_[0];
for (int i = 1; i < 256; i++)
{
C[i] = (R_[i] + C[i - 1]);
}
for (int i = 0; i <= 255; i++)
{
lut[i] = Math.Max(0, (Math.Round(C[i] / k) - 1));
}
ImageForm EcualizationImage = new ImageForm();
EcualizationImage.MdiParent = this.MdiParent;
Bitmap EcualizationBmp = new Bitmap(picture_);
for (int x = 0; x < width_; x++)
{
for (int y = 0; y < height_; y++)
{
int temp = (int)lut[picture_.GetPixel(x, y).R];
Color Grey = Color.FromArgb(temp, temp, temp);
EcualizationBmp.SetPixel(x, y, Grey);
}
}
EcualizationImage.AssignAtributtes(EcualizationBmp);
//SpecificationImage.pictureBox1.Image = (Image)(SpecificationBmp);
EcualizationImage.Show();
}
