private static void SaltandPepperShapkaProcess(Bitmap img, double densitySalt, double densityPepper, SaltandPapperNoise noiseType)
{
string imgExtension = GetImageInfo.Imginfo(Imageinfo.Extension);
string imgName = GetImageInfo.Imginfo(Imageinfo.FileName);
string defPath = GetImageInfo.MyPath("Noise");
Bitmap image = new Bitmap(img.Width, img.Height, PixelFormat.Format24bppRgb);
double Depth = System.Drawing.Image.GetPixelFormatSize(img.PixelFormat);
string outName = string.Empty;
List <ArraysListInt> ColorList = Helpers.GetPixels(img);
int[,] resultR = new int[img.Height, img.Width];
int[,] resultG = new int[img.Height, img.Width];
int[,] resultB = new int[img.Height, img.Width];
if (densitySalt > 0 && densitySalt <= 1 && densityPepper > 0 && densityPepper <= 1)
{
int white = 1;
double[,] noise = Helpers.RandArray(img.Height, img.Width);
if (Depth != 1 && Depth != 8)
{
white = 255;
resultR = SaltandPepper(ColorList[0].Color, noise, densitySalt, densityPepper, white, noiseType);
resultG = SaltandPepper(ColorList[1].Color, noise, densitySalt, densityPepper, white, noiseType);
resultB = SaltandPepper(ColorList[2].Color, noise, densitySalt, densityPepper, white, noiseType);
}
else
{
resultR = SaltandPepper(ColorList[0].Color, noise, densitySalt, densityPepper, white, noiseType);
resultG = resultR; resultB = resultR;
}
image = Helpers.SetPixels(image, resultR, resultG, resultB);
if (Depth == 8)
{
image = PixelFormatWorks.Bpp24Gray2Gray8bppBitMap(image);
}
if (Depth == 1)
{
image = PixelFormatWorks.ImageTo1BppBitmap(image, 0.5);
}
}
else
{
Console.WriteLine("Density must be in range [0..1]. Method NoiseTry.SaltandPepperNoise(). Return black rectangle.");
}
if (noiseType == SaltandPapperNoise.salt)
{
outName = defPath + imgName + "_SaltNoise_Density_" + densitySalt + imgExtension;
}
else if (noiseType == SaltandPapperNoise.pepper)
{
outName = defPath + imgName + "_PepperNoise_Density_" + densityPepper + imgExtension;
}
else
{
outName = defPath + imgName + "_SalptandPepperNoise_SaltDensity_" + densitySalt + "_PepperDensity_" + densityPepper + imgExtension;
}
Helpers.SaveOptions(image, outName, imgExtension);
}
private static int[,] SaltandPepper(int[,] arr, double[,] noise, double densitySalt, double densityPepper, int white, SaltandPapperNoise noiseType)
{
int[,] result = new int[arr.GetLength(0), arr.GetLength(1)];
ArrGen <int> d = new ArrGen <int>();
var vectorArr = arr.Cast <int>().ToArray();
var vectorNoise = noise.Cast <double>().ToArray();
switch (noiseType)
{
case SaltandPapperNoise.salt:
for (int i = 0; i < noise.Length; i++)
{
if (vectorNoise[i] >= (1 - densitySalt / 2))
{
vectorArr[i] = white;
}
}
result = d.VecorToArrayRowByRow(arr.GetLength(0), arr.GetLength(1), vectorArr);
break;
case SaltandPapperNoise.pepper:
for (int i = 0; i < noise.Length; i++)
{
if (vectorNoise[i] <= densityPepper / 2)
{
vectorArr[i] = 0;
}
}
result = d.VecorToArrayRowByRow(arr.GetLength(0), arr.GetLength(1), vectorArr);
break;
case SaltandPapperNoise.saltandpepper:
for (int i = 0; i < noise.Length; i++)
{
if (vectorNoise[i] >= (1 - densitySalt / 2))
{
vectorArr[i] = white;
}
}
for (int i = 0; i < noise.Length; i++)
{
if (vectorNoise[i] <= densityPepper / 2)
{
vectorArr[i] = 0;
}
}
result = d.VecorToArrayRowByRow(arr.GetLength(0), arr.GetLength(1), vectorArr);
break;
}
return(result);
}
//default
public static void SaltandPepperNoise(Bitmap img, SaltandPapperNoise noiseType)
{
double density = 0.05;
SaltandPepperShapkaProcess(img, density, density, noiseType);
}