private void Min_Max_Value(Data[,] Org_Buffer, out Data Min, out Data Max)
{
int width = Org_Buffer.GetLength(0);
int height = Org_Buffer.GetLength(1);
Min.B_Val = Min.R_Val = Min.G_Val = 255;
Max.B_Val = Max.R_Val = Max.G_Val = 0;
for (int j = 0; j < height; ++j)
{
for (int i = 0; i < width; ++i)
{
if (Org_Buffer[i, j].R_Val < Min.R_Val)
Min.R_Val = Org_Buffer[i, j].R_Val;
if (Org_Buffer[i, j].G_Val < Min.G_Val)
Min.G_Val = Org_Buffer[i, j].G_Val;
if (Org_Buffer[i, j].B_Val < Min.B_Val)
Min.B_Val = Org_Buffer[i, j].B_Val;
// // // // // //
if (Org_Buffer[i, j].R_Val > Max.R_Val)
Max.R_Val = Org_Buffer[i, j].R_Val;
if (Org_Buffer[i, j].G_Val > Max.G_Val)
Max.G_Val = Org_Buffer[i, j].G_Val;
if (Org_Buffer[i, j].B_Val > Max.B_Val)
Max.B_Val = Org_Buffer[i, j].B_Val;
}
}
}
//Normalization int Data type [overloaded Function]
public Color[,] Contrast(int NewMin, int NewMax, Data[,] Org_Buffer)
{
//NewVal = [(OldVal – OldMin)/(OldMax – OldMin)] × (NewMax – NewMin) + NewMin
Data OldMin, OldMax;
Min_Max_Value(Org_Buffer, out OldMin, out OldMax);
int width = Org_Buffer.GetLength(0);
int height = Org_Buffer.GetLength(1);
Color[,] Org_Buffer_temp = new Color[width, height];
Data data;
//IMPORTANT ==> we Suppose that NewMax & NewMin is one for R & G & B .. the user Enter one value fo 3 colors
for (int j = 0; j < height; ++j)
{
for (int i = 0; i < width; ++i)
{
data.R_Val = (((Org_Buffer[i, j].R_Val - OldMin.R_Val) / (OldMax.R_Val - OldMin.R_Val)) * (NewMax - NewMin) + NewMin);
data.R_Val = cutOff(data.R_Val);
data.G_Val = (((Org_Buffer[i, j].G_Val - OldMin.G_Val) / (OldMax.G_Val - OldMin.G_Val)) * (NewMax - NewMin) + NewMin);
data.G_Val = cutOff(data.G_Val);
data.B_Val = (((Org_Buffer[i, j].B_Val - OldMin.B_Val) / (OldMax.B_Val - OldMin.B_Val)) * (NewMax - NewMin) + NewMin);
data.B_Val = cutOff(data.B_Val);
Org_Buffer_temp[i, j] = Color.FromArgb((int)data.R_Val, (int)data.G_Val, (int)data.B_Val);
}
}
return Org_Buffer_temp;
}