public static void BlackWhite(RetouchForm form)
//Перевод в серые тона
{
Bitmap grayImg = new Bitmap(form.LoadImg_box.Image);
Graphics g = Graphics.FromImage(grayImg);
ColorMatrix colorMatrix = new ColorMatrix(new float[][]
{
new float[] { 0.299f, 0.299f, 0.299f, 0, 0 },
new float[] { 0.587f, 0.587f, 0.587f, 0, 0 },
new float[] { 0.114f, 0.114f, 0.114f, 0, 0 },
new float[] { 0, 0, 0, 1, 0 },
new float[] { 0, 0, 0, 0, 0 }
});
ImageAttributes attributes = new ImageAttributes();
attributes.SetColorMatrix(colorMatrix);
g.DrawImage(form.LoadImg_box.Image,
new Rectangle(0, 0, form.LoadImg_box.Image.Width, form.LoadImg_box.Image.Height), 0, 0,
form.LoadImg_box.Image.Width, form.LoadImg_box.Image.Height,
GraphicsUnit.Pixel, attributes);
g.Dispose();
form.ConvertImg_box.Image = grayImg;
}
public static void Sobel(RetouchForm form)
//Обработка изображения методом Собеля
{
Bitmap b = new Bitmap(form.LoadImg_box.Image);
Bitmap bb = new Bitmap(form.LoadImg_box.Image);
int width = b.Width;
int height = b.Height;
int[,] gx = new int[, ] {
{ -1, 0, 1 }, { -2, 0, 2 }, { -1, 0, 1 }
};
int[,] gy = new int[, ] {
{ 1, 2, 1 }, { 0, 0, 0 }, { -1, -2, -1 }
};
int[,] allPixR = new int[width, height];
int[,] allPixG = new int[width, height];
int[,] allPixB = new int[width, height];
int limit = 128 * 128;
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
allPixR[i, j] = b.GetPixel(i, j).R;
allPixG[i, j] = b.GetPixel(i, j).G;
allPixB[i, j] = b.GetPixel(i, j).B;
}
}
int new_rx = 0, new_ry = 0;
int new_gx = 0, new_gy = 0;
int new_bx = 0, new_by = 0;
int rc, gc, bc;
for (int i = 1; i < b.Width - 1; i++)
{
for (int j = 1; j < b.Height - 1; j++)
{
new_rx = 0;
new_ry = 0;
new_gx = 0;
new_gy = 0;
new_bx = 0;
new_by = 0;
rc = 0;
gc = 0;
bc = 0;
for (int wi = -1; wi < 2; wi++)
{
for (int hw = -1; hw < 2; hw++)
{
rc = allPixR[i + hw, j + wi];
new_rx += gx[wi + 1, hw + 1] * rc;
new_ry += gy[wi + 1, hw + 1] * rc;
gc = allPixG[i + hw, j + wi];
new_gx += gx[wi + 1, hw + 1] * gc;
new_gy += gy[wi + 1, hw + 1] * gc;
bc = allPixB[i + hw, j + wi];
new_bx += gx[wi + 1, hw + 1] * bc;
new_by += gy[wi + 1, hw + 1] * bc;
}
}
if (new_rx * new_rx + new_ry * new_ry > limit || new_gx * new_gx + new_gy * new_gy > limit || new_bx * new_bx + new_by * new_by > limit)
{
bb.SetPixel(i, j, Color.Black);
}
//bb.SetPixel (i, j, Color.FromArgb(allPixR[i,j],allPixG[i,j],allPixB[i,j]));
else
{
bb.SetPixel(i, j, Color.White);
}
}
}
form.ConvertImg_box.Image = bb;
}
public static void Canny(RetouchForm form)
//Обработка изображения методом Канни
{
Bitmap b = new Bitmap(form.LoadImg_box.Image);
int width = b.Width;
int height = b.Height;
Bitmap n = new Bitmap(width, height);
int[,] allPixR = new int[width, height];
int[,] allPixG = new int[width, height];
int[,] allPixB = new int[width, height];
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
allPixR[i, j] = b.GetPixel(i, j).R;
allPixG[i, j] = b.GetPixel(i, j).G;
allPixB[i, j] = b.GetPixel(i, j).B;
}
}
for (int i = 2; i < b.Width - 2; i++)
{
for (int j = 2; j < b.Height - 2; j++)
{
int red = (
((allPixR[i - 2, j - 2]) * 1 + (allPixR[i - 1, j - 2]) * 4 + (allPixR[i, j - 2]) * 7 + (allPixR[i + 1, j - 2]) * 4 + (allPixR[i + 2, j - 2])
+ (allPixR[i - 2, j - 1]) * 4 + (allPixR[i - 1, j - 1]) * 16 + (allPixR[i, j - 1]) * 26 + (allPixR[i + 1, j - 1]) * 16 + (allPixR[i + 2, j - 1]) * 4
+ (allPixR[i - 2, j]) * 7 + (allPixR[i - 1, j]) * 26 + (allPixR[i, j]) * 41 + (allPixR[i + 1, j]) * 26 + (allPixR[i + 2, j]) * 7
+ (allPixR[i - 2, j + 1]) * 4 + (allPixR[i - 1, j + 1]) * 16 + (allPixR[i, j + 1]) * 26 + (allPixR[i + 1, j + 1]) * 16 + (allPixR[i + 2, j + 1]) * 4
+ (allPixR[i - 2, j + 2]) * 1 + (allPixR[i - 1, j + 2]) * 4 + (allPixR[i, j + 2]) * 7 + (allPixR[i + 1, j + 2]) * 4 + (allPixR[i + 2, j + 2]) * 1) / 273
);
int green = (
((allPixG[i - 2, j - 2]) * 1 + (allPixG[i - 1, j - 2]) * 4 + (allPixG[i, j - 2]) * 7 + (allPixG[i + 1, j - 2]) * 4 + (allPixG[i + 2, j - 2])
+ (allPixG[i - 2, j - 1]) * 4 + (allPixG[i - 1, j - 1]) * 16 + (allPixG[i, j - 1]) * 26 + (allPixG[i + 1, j - 1]) * 16 + (allPixG[i + 2, j - 1]) * 4
+ (allPixG[i - 2, j]) * 7 + (allPixG[i - 1, j]) * 26 + (allPixG[i, j]) * 41 + (allPixG[i + 1, j]) * 26 + (allPixG[i + 2, j]) * 7
+ (allPixG[i - 2, j + 1]) * 4 + (allPixG[i - 1, j + 1]) * 16 + (allPixG[i, j + 1]) * 26 + (allPixG[i + 1, j + 1]) * 16 + (allPixG[i + 2, j + 1]) * 4
+ (allPixG[i - 2, j + 2]) * 1 + (allPixG[i - 1, j + 2]) * 4 + (allPixG[i, j + 2]) * 7 + (allPixG[i + 1, j + 2]) * 4 + (allPixG[i + 2, j + 2]) * 1) / 273
);
int blue = (
((allPixB[i - 2, j - 2]) * 1 + (allPixB[i - 1, j - 2]) * 4 + (allPixB[i, j - 2]) * 7 + (allPixB[i + 1, j - 2]) * 4 + (allPixB[i + 2, j - 2])
+ (allPixB[i - 2, j - 1]) * 4 + (allPixB[i - 1, j - 1]) * 16 + (allPixB[i, j - 1]) * 26 + (allPixB[i + 1, j - 1]) * 16 + (allPixB[i + 2, j - 1]) * 4
+ (allPixB[i - 2, j]) * 7 + (allPixB[i - 1, j]) * 26 + (allPixB[i, j]) * 41 + (allPixB[i + 1, j]) * 26 + (allPixB[i + 2, j]) * 7
+ (allPixB[i - 2, j + 1]) * 4 + (allPixB[i - 1, j + 1]) * 16 + (allPixB[i, j + 1]) * 26 + (allPixB[i + 1, j + 1]) * 16 + (allPixB[i + 2, j + 1]) * 4
+ (allPixB[i - 2, j + 2]) * 1 + (allPixB[i - 1, j + 2]) * 4 + (allPixB[i, j + 2]) * 7 + (allPixB[i + 1, j + 2]) * 4 + (allPixB[i + 2, j + 2]) * 1) / 273
);
n.SetPixel(i, j, Color.FromArgb(red, green, blue));
}
}
//pictureBox2.Image = n;//////////////////////////////////////////////////////here onward use n///////////////////////////////////////////////
int[,] allPixRn = new int[width, height];
int[,] allPixGn = new int[width, height];
int[,] allPixBn = new int[width, height];
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
allPixRn[i, j] = n.GetPixel(i, j).R;
allPixGn[i, j] = n.GetPixel(i, j).G;
allPixBn[i, j] = n.GetPixel(i, j).B;
}
}
int[,] gx = new int[, ] {
{ -1, 0, 1 }, { -2, 0, 2 }, { -1, 0, 1 }
};
int[,] gy = new int[, ] {
{ 1, 2, 1 }, { 0, 0, 0 }, { -1, -2, -1 }
};
int new_rx = 0, new_ry = 0;
int new_gx = 0, new_gy = 0;
int new_bx = 0, new_by = 0;
int rc, gc, bc;
int gradR, gradG, gradB;
int[,] graidientR = new int[width, height];
int[,] graidientG = new int[width, height];
int[,] graidientB = new int[width, height];
int atanR, atanG, atanB;
int[,] tanR = new int[width, height];
int[,] tanG = new int[width, height];
int[,] tanB = new int[width, height];
//int limit = 128 * 128;
//Bitmap bb = new Bitmap (pictureBox1.Image);
for (int i = 1; i < b.Width - 1; i++)
{
for (int j = 1; j < b.Height - 1; j++)
{
new_rx = 0;
new_ry = 0;
new_gx = 0;
new_gy = 0;
new_bx = 0;
new_by = 0;
rc = 0;
gc = 0;
bc = 0;
for (int wi = -1; wi < 2; wi++)
{
for (int hw = -1; hw < 2; hw++)
{
rc = allPixRn[i + hw, j + wi];
new_rx += gx[wi + 1, hw + 1] * rc;
new_ry += gy[wi + 1, hw + 1] * rc;
gc = allPixGn[i + hw, j + wi];
new_gx += gx[wi + 1, hw + 1] * gc;
new_gy += gy[wi + 1, hw + 1] * gc;
bc = allPixBn[i + hw, j + wi];
new_bx += gx[wi + 1, hw + 1] * bc;
new_by += gy[wi + 1, hw + 1] * bc;
}
}
//find gradieant
gradR = (int)Math.Sqrt((new_rx * new_rx) + (new_ry * new_ry));
graidientR[i, j] = gradR;
gradG = (int)Math.Sqrt((new_gx * new_gx) + (new_gy * new_gy));
graidientG[i, j] = gradG;
gradB = (int)Math.Sqrt((new_bx * new_gx) + (new_by * new_by));
graidientB[i, j] = gradB;
//
//find tans
////////////////tan red//////////////////////////////////
atanR = (int)((Math.Atan((double)new_ry / new_rx)) * (180 / Math.PI));
if ((atanR > 0 && atanR < 22.5) || (atanR > 157.5 && atanR < 180))
{
atanR = 0;
}
else if (atanR > 22.5 && atanR < 67.5)
{
atanR = 45;
}
else if (atanR > 67.5 && atanR < 112.5)
{
atanR = 90;
}
else if (atanR > 112.5 && atanR < 157.5)
{
atanR = 135;
}
if (atanR == 0)
{
tanR[i, j] = 0;
}
else if (atanR == 45)
{
tanR[i, j] = 1;
}
else if (atanR == 90)
{
tanR[i, j] = 2;
}
else if (atanR == 135)
{
tanR[i, j] = 3;
}
////////////////tan red end//////////////////////////////////
////////////////tan green//////////////////////////////////
atanG = (int)((Math.Atan((double)new_gy / new_gx)) * (180 / Math.PI));
if ((atanG > 0 && atanG < 22.5) || (atanG > 157.5 && atanG < 180))
{
atanG = 0;
}
else if (atanG > 22.5 && atanG < 67.5)
{
atanG = 45;
}
else if (atanG > 67.5 && atanG < 112.5)
{
atanG = 90;
}
else if (atanG > 112.5 && atanG < 157.5)
{
atanG = 135;
}
if (atanG == 0)
{
tanG[i, j] = 0;
}
else if (atanG == 45)
{
tanG[i, j] = 1;
}
else if (atanG == 90)
{
tanG[i, j] = 2;
}
else if (atanG == 135)
{
tanG[i, j] = 3;
}
////////////////tan green end//////////////////////////////////
////////////////tan blue//////////////////////////////////
atanB = (int)((Math.Atan((double)new_by / new_bx)) * (180 / Math.PI));
if ((atanB > 0 && atanB < 22.5) || (atanB > 157.5 && atanB < 180))
{
atanB = 0;
}
else if (atanB > 22.5 && atanB < 67.5)
{
atanB = 45;
}
else if (atanB > 67.5 && atanB < 112.5)
{
atanB = 90;
}
else if (atanB > 112.5 && atanB < 157.5)
{
atanB = 135;
}
if (atanB == 0)
{
tanB[i, j] = 0;
}
else if (atanB == 45)
{
tanB[i, j] = 1;
}
else if (atanB == 90)
{
tanB[i, j] = 2;
}
else if (atanB == 135)
{
tanB[i, j] = 3;
}
////////////////tan blue end//////////////////////////////////
}
}
int[,] allPixRs = new int[width, height];
int[,] allPixGs = new int[width, height];
int[,] allPixBs = new int[width, height];
for (int i = 2; i < width - 2; i++)
{
for (int j = 2; j < height - 2; j++)
{
////red
if (tanR[i, j] == 0)
{
if (graidientR[i - 1, j] < graidientR[i, j] && graidientR[i + 1, j] < graidientR[i, j])
{
allPixRs[i, j] = graidientR[i, j];
}
else
{
allPixRs[i, j] = 0;
}
}
if (tanR[i, j] == 1)
{
if (graidientR[i - 1, j + 1] < graidientR[i, j] && graidientR[i + 1, j - 1] < graidientR[i, j])
{
allPixRs[i, j] = graidientR[i, j];
}
else
{
allPixRs[i, j] = 0;
}
}
if (tanR[i, j] == 2)
{
if (graidientR[i, j - 1] < graidientR[i, j] && graidientR[i, j + 1] < graidientR[i, j])
{
allPixRs[i, j] = graidientR[i, j];
}
else
{
allPixRs[i, j] = 0;
}
}
if (tanR[i, j] == 3)
{
if (graidientR[i - 1, j - 1] < graidientR[i, j] && graidientR[i + 1, j + 1] < graidientR[i, j])
{
allPixRs[i, j] = graidientR[i, j];
}
else
{
allPixRs[i, j] = 0;
}
}
//green
if (tanG[i, j] == 0)
{
if (graidientG[i - 1, j] < graidientG[i, j] && graidientG[i + 1, j] < graidientG[i, j])
{
allPixGs[i, j] = graidientG[i, j];
}
else
{
allPixGs[i, j] = 0;
}
}
if (tanG[i, j] == 1)
{
if (graidientG[i - 1, j + 1] < graidientG[i, j] && graidientG[i + 1, j - 1] < graidientG[i, j])
{
allPixGs[i, j] = graidientG[i, j];
}
else
{
allPixGs[i, j] = 0;
}
}
if (tanG[i, j] == 2)
{
if (graidientG[i, j - 1] < graidientG[i, j] && graidientG[i, j + 1] < graidientG[i, j])
{
allPixGs[i, j] = graidientG[i, j];
}
else
{
allPixGs[i, j] = 0;
}
}
if (tanG[i, j] == 3)
{
if (graidientG[i - 1, j - 1] < graidientG[i, j] && graidientG[i + 1, j + 1] < graidientG[i, j])
{
allPixGs[i, j] = graidientG[i, j];
}
else
{
allPixGs[i, j] = 0;
}
}
//blue
if (tanB[i, j] == 0)
{
if (graidientB[i - 1, j] < graidientB[i, j] && graidientB[i + 1, j] < graidientB[i, j])
{
allPixBs[i, j] = graidientB[i, j];
}
else
{
allPixBs[i, j] = 0;
}
}
if (tanB[i, j] == 1)
{
if (graidientB[i - 1, j + 1] < graidientB[i, j] && graidientB[i + 1, j - 1] < graidientB[i, j])
{
allPixBs[i, j] = graidientB[i, j];
}
else
{
allPixBs[i, j] = 0;
}
}
if (tanB[i, j] == 2)
{
if (graidientB[i, j - 1] < graidientB[i, j] && graidientB[i, j + 1] < graidientB[i, j])
{
allPixBs[i, j] = graidientB[i, j];
}
else
{
allPixBs[i, j] = 0;
}
}
if (tanB[i, j] == 3)
{
if (graidientB[i - 1, j - 1] < graidientB[i, j] && graidientB[i + 1, j + 1] < graidientB[i, j])
{
allPixBs[i, j] = graidientB[i, j];
}
else
{
allPixBs[i, j] = 0;
}
}
}
}
int threshold = Convert.ToInt16(form.textBox1.Text);
int[,] allPixRf = new int[width, height];
int[,] allPixGf = new int[width, height];
int[,] allPixBf = new int[width, height];
// Bitmap bb = new Bitmap (pictureBox1.Image);
Bitmap bb = new Bitmap(width, height);
for (int i = 2; i < width - 2; i++)
{
for (int j = 2; j < height - 2; j++)
{
if (allPixRs[i, j] > threshold)
{
allPixRf[i, j] = 1;
}
else
{
allPixRf[i, j] = 0;
}
if (allPixGs[i, j] > threshold)
{
allPixGf[i, j] = 1;
}
else
{
allPixGf[i, j] = 0;
}
if (allPixBs[i, j] > threshold)
{
allPixBf[i, j] = 1;
}
else
{
allPixBf[i, j] = 0;
}
if (allPixRf[i, j] == 1 || allPixGf[i, j] == 1 || allPixBf[i, j] == 1)
{
bb.SetPixel(i, j, Color.Black);
}
else
{
bb.SetPixel(i, j, Color.White);
}
}
}
form.ConvertImg_box.Image = bb;
}