private void Median_btn_Click(object sender, EventArgs e)
{
//Median
int Window_Size = vScrollBar1.Value;
int[] Median_Vector_R = new int[Window_Size * Window_Size];
int[] Median_Vector_G = new int[Window_Size * Window_Size];
int[] Median_Vector_B = new int[Window_Size * Window_Size];
int frame = Window_Size / 2;
int V = 0;
for (int x = frame; x < Source_Image.Width - frame; x++)
{
for (int y = frame; y < Source_Image.Height - frame; y++)
{
V = 0;
//1-Get vectors
for (int i = 0; i < Window_Size; i++)
{
for (int j = 0; j < Window_Size; j++)
{
Median_Vector_R[V] = Source_Image.GetPixel(x + i - frame, y + j - frame).R;
Median_Vector_G[V] = Source_Image.GetPixel(x + i - frame, y + j - frame).G;
Median_Vector_B[V] = Source_Image.GetPixel(x + i - frame, y + j - frame).B;
V++;
}
}
//2-Sort vectors
Bubble_Sort(ref Median_Vector_R, Window_Size * Window_Size);
Bubble_Sort(ref Median_Vector_G, Window_Size * Window_Size);
Bubble_Sort(ref Median_Vector_B, Window_Size * Window_Size);
//3-pic mid point of sorted vector and assign it to DESTINATION_IMAGE
int RR = Median_Vector_R[Window_Size * Window_Size / 2 + 1];
int GG = Median_Vector_R[Window_Size * Window_Size / 2 + 1];
int BB = Median_Vector_R[Window_Size * Window_Size / 2 + 1];
Destination_Image.SetPixel(x, y, Color.FromArgb((int)RR, (int)GG, (int)BB));
}
}
//Convolution(Source_Image, ref Destination_Image, Kernel, Window_Size);
pictureBox_Destination.Image = Destination_Image;
}
private void GrayScale_btn_Click(object sender, EventArgs e)
{
for (int i = 0; i < Source_Image.Width; i++)
{
for (int j = 0; j < Source_Image.Height; j++)
{
int RR = Source_Image.GetPixel(i, j).R;
int GG = Source_Image.GetPixel(i, j).G;
int BB = Source_Image.GetPixel(i, j).B;
int Gray = (RR + GG + BB) / 3;
Destination_Image.SetPixel(i, j, Color.FromArgb(Gray, Gray, Gray));
}
}
pictureBox_Destination.Image = Destination_Image;
}
private void Contrast_btn_Click(object sender, EventArgs e)
{
//Contrast
int Contrast_Value = vScrollBar3.Value;
double F = (259 * (Contrast_Value + 255)) / (255 * (259 - Contrast_Value));
for (int x = 0; x < Source_Image.Width; x++)
{
for (int y = 0; y < Source_Image.Height; y++)
{
int result_R = (int)Math.Round(F * (Source_Image.GetPixel(x, y).R - 128) + 128);
int result_G = (int)Math.Round(F * (Source_Image.GetPixel(x, y).G - 128) + 128);
int result_B = (int)Math.Round(F * (Source_Image.GetPixel(x, y).B - 128) + 128);
if (result_R > 255)
{
result_R = 255;
}
else if (result_R < 0)
{
result_R = 0;
}
if (result_G > 255)
{
result_G = 255;
}
else if (result_G < 0)
{
result_G = 0;
}
if (result_B > 255)
{
result_B = 255;
}
else if (result_B < 0)
{
result_B = 0;
}
Destination_Image.SetPixel(x, y, Color.FromArgb((int)result_R, (int)result_G, (int)result_B));
}
}
pictureBox_Destination.Image = Destination_Image;
}
private void Brightness_btn_Click(object sender, EventArgs e)
{
//Brightness
int Brigthness_Value = vScrollBar2.Value;
for (int x = 0; x < Source_Image.Width; x++)
{
for (int y = 0; y < Source_Image.Height; y++)
{
int result_R = Source_Image.GetPixel(x, y).R + Brigthness_Value;
int result_G = Source_Image.GetPixel(x, y).G + Brigthness_Value;
int result_B = Source_Image.GetPixel(x, y).B + Brigthness_Value;
if (result_R > 255)
{
result_R = 255;
}
else if (result_R < 0)
{
result_R = 0;
}
if (result_G > 255)
{
result_G = 255;
}
else if (result_G < 0)
{
result_G = 0;
}
if (result_B > 255)
{
result_B = 255;
}
else if (result_B < 0)
{
result_B = 0;
}
Destination_Image.SetPixel(x, y, Color.FromArgb((int)result_R, (int)result_G, (int)result_B));
}
}
pictureBox_Destination.Image = Destination_Image;
}
private void Gama_btn_Click(object sender, EventArgs e)
{
//Gama Correction
double Gama_Value = vScrollBar4.Value / 10.0;
for (int x = 0; x < Source_Image.Width; x++)
{
for (int y = 0; y < Source_Image.Height; y++)
{
int result_R = (int)Math.Round(255 * Math.Pow(Source_Image.GetPixel(x, y).R / 255.0, 1 / Gama_Value));
int result_G = (int)Math.Round(255 * Math.Pow(Source_Image.GetPixel(x, y).G / 255.0, 1 / Gama_Value));
int result_B = (int)Math.Round(255 * Math.Pow(Source_Image.GetPixel(x, y).B / 255.0, 1 / Gama_Value));
Destination_Image.SetPixel(x, y, Color.FromArgb((int)result_R, (int)result_G, (int)result_B));
}
}
pictureBox_Destination.Image = Destination_Image;
}
