public void BinarizationOperation(int threshold)
{
outBitmap = new WriteableBitmap(originalBitmap);
outBitmap.Lock();
byte MAX_COLOR = 0xFF;
byte[] LUT = new byte[MAX_COLOR + 1];
for (int i = threshold; i < MAX_COLOR + 1; i++)
{
LUT[i] = MAX_COLOR;
}
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
RGBPixel pixel = pixelMatrix[x, y];
pixel.ToGrayscale2();
pixel.ChangeColors(LUT[pixel.Red]);
DrawPixel(pixel);
}
}
UpdateImage();
}
public void ApplyMedianFilter(RGBPixel[,] neighbours)
{
int size = 3, k = 0;
RGBPixel[] array = new RGBPixel[size * size];
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
array[k++] = neighbours[i, j];
}
}
Array.Sort(array, delegate(RGBPixel pixel1, RGBPixel pixel2)
{
return(pixel1.ColorValue.CompareTo(pixel2.ColorValue));
});
RGBPixel median = array[size * size / 2];
Red = median.Red;
Green = median.Green;
Blue = median.Blue;
}
public void ApplyDilationFilter(BinaryMask mask, RGBPixel[,] neighbours)
{
int size = mask.Size;
byte maxRed = oldRed, maxGreen = oldGreen, maxBlue = oldBlue;
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
if (mask.Matrix[i, j])
{
RGBPixel neighbour = neighbours[i, j];
if (neighbour.Red > maxRed)
{
maxRed = neighbour.oldRed;
}
if (neighbour.Green > maxGreen)
{
maxGreen = neighbour.oldGreen;
}
if (neighbour.Blue > maxBlue)
{
maxBlue = neighbour.oldBlue;
}
}
}
}
Red = maxRed;
Green = maxGreen;
Blue = maxBlue;
}
public void ClosingOperation(BinaryMask mask)
{
outBitmap = new WriteableBitmap(originalBitmap);
outBitmap.Lock();
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
RGBPixel pixel = pixelMatrix[x, y];
RGBPixel[,] neighbours = GetNeighbours(pixel, mask.Size);
pixel.ApplyDilationFilter(mask, neighbours);
}
}
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
pixelMatrix[x, y].Update();
}
}
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
RGBPixel pixel = pixelMatrix[x, y];
RGBPixel[,] neighbours = GetNeighbours(pixel, mask.Size);
pixel.ApplyErosionFilter(mask, neighbours);
DrawPixel(pixel);
}
}
UpdateImage();
UpdatePixelMatrix();
}
public void ApplyErosionFilter(BinaryMask mask, RGBPixel[,] neighbours)
{
int size = mask.Size;
byte minRed = oldRed, minGreen = oldGreen, minBlue = oldBlue;
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
if (mask.Matrix[i, j])
{
RGBPixel neighbour = neighbours[i, j];
if (neighbour.oldRed < minRed)
{
minRed = neighbour.oldRed;
}
if (neighbour.oldGreen < minGreen)
{
minGreen = neighbour.oldGreen;
}
if (neighbour.oldBlue < minBlue)
{
minBlue = neighbour.oldBlue;
}
}
}
}
Red = minRed;
Green = minGreen;
Blue = minBlue;
}
private void MenuDivide_OnClick(object sender, RoutedEventArgs e)
{
rgbColor = new RGBPixel(1, 1, 1);
rgbColor.PropertyChanged += DivideColorPicker_OnChanged;
colorPickWindow = new ColorPickWindow(rgbColor);
colorPickWindow.Closed += Dialog_OnClosed;
colorPickWindow.Owner = this;
colorPickWindow.Show();
}
public RGBPixel[,] CopyPixelMatrix()
{
RGBPixel[,] newMatrix = new RGBPixel[width, height];
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
newMatrix[x, y] = pixelMatrix[x, y].GetCopy();
}
}
return(newMatrix);
}
public byte[] GetMinMax()
{
byte rMin, rMax, gMin, gMax, bMin, bMax;
rMin = rMax = pixelMatrix[0, 0].Red;
gMin = gMax = pixelMatrix[0, 0].Green;
bMin = bMax = pixelMatrix[0, 0].Blue;
for (int x = 1; x < width; x++)
{
for (int y = 1; y < height; y++)
{
RGBPixel pixel = pixelMatrix[x, y];
if (pixel.Red < rMin)
{
rMin = pixel.Red;
}
else if (pixel.Red > rMax)
{
rMax = pixel.Red;
}
if (pixel.Green < gMin)
{
gMin = pixel.Green;
}
else if (pixel.Green > gMax)
{
gMax = pixel.Green;
}
if (pixel.Blue < bMin)
{
bMin = pixel.Blue;
}
else if (pixel.Blue > bMax)
{
bMax = pixel.Blue;
}
}
}
byte[] output = new byte[6];
output[0] = rMin;
output[1] = rMax;
output[2] = gMin;
output[3] = gMax;
output[4] = bMin;
output[5] = bMax;
return(output);
}
public void DrawPixel(RGBPixel pixel)
{
Int32Rect rectangle = new Int32Rect(pixel.X, pixel.Y, 1, 1);
unsafe
{
int colorValue = pixel.ColorValue;
IntPtr backBuffer = outBitmap.BackBuffer;
backBuffer += pixel.Y * outBitmap.BackBufferStride;
backBuffer += pixel.X * 4;
*((int *)backBuffer) = colorValue;
}
outBitmap.AddDirtyRect(rectangle);
}
public void ChangeBrightnessOperation(int value)
{
outBitmap = new WriteableBitmap(originalBitmap);
outBitmap.Lock();
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
RGBPixel pixel = pixelMatrix[x, y];
pixel.ChangeBrightness(value);
DrawPixel(pixel);
}
}
UpdateImage();
}
public void GrayscaleOperation2()
{
outBitmap = new WriteableBitmap(originalBitmap);
outBitmap.Lock();
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
RGBPixel pixel = pixelMatrix[x, y];
pixel.ToGrayscale2();
DrawPixel(pixel);
}
}
UpdateImage();
UpdatePixelMatrix();
}
public void ApplyLUT(int[] rLUT, int[] gLUT, int[] bLUT)
{
outBitmap = new WriteableBitmap(originalBitmap);
outBitmap.Lock();
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
RGBPixel pixel = pixelMatrix[x, y];
pixel.ChangeColors(rLUT[pixel.Red], gLUT[pixel.Green], bLUT[pixel.Blue]);
DrawPixel(pixel);
}
}
UpdateImage();
UpdatePixelMatrix();
}
public int[] GetGrayscaleHistogram()
{
byte MAX_COLOR = 0xFF;
int[] h = new int[MAX_COLOR + 1];
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
RGBPixel pixel = pixelMatrix[x, y];
pixel.ToGrayscale2();
h[pixel.Red]++;
}
}
return(h);
}
public void ApplyHitOrMissFilter(Mask mask, RGBPixel[,] neighbours)
{
int size = mask.Size;
byte MAX_COLOR = 255, MIN_COLOR = 0;
bool fits = true;
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
RGBPixel neighbour = neighbours[i, j];
if (mask.Matrix[i, j] == 1)
{
if (neighbour.oldRed != MAX_COLOR || neighbour.oldGreen != MAX_COLOR || neighbour.oldBlue != MAX_COLOR)
{
fits = false;
break;
}
}
else if (mask.Matrix[i, j] == -1)
{
if (neighbour.oldRed != MIN_COLOR || neighbour.oldGreen != MIN_COLOR || neighbour.oldBlue != MIN_COLOR)
{
fits = false;
break;
}
}
}
if (!fits)
{
break;
}
}
if (fits)
{
Red = MAX_COLOR;
Green = MAX_COLOR;
Blue = MAX_COLOR;
}
else
{
Red = MIN_COLOR;
Green = MIN_COLOR;
Blue = MIN_COLOR;
}
}
public void ThickenOperation()
{
outBitmap = new WriteableBitmap(originalBitmap);
outBitmap.Lock();
bool changed;
Mask[] masks = new Mask[8];
masks[0] = Mask.Thicken1;
masks[1] = Mask.Thicken2;
for (int i = 2; i < 8; i++)
{
masks[i] = masks[i - 2].RotateRight();
}
do
{
changed = false;
for (int i = 0; i < 8; i++)
{
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
RGBPixel pixel = pixelMatrix[x, y];
RGBPixel[,] neighbours = GetNeighbours(pixel, masks[0].Size);
if (pixel.Thicken(masks[i], neighbours))
{
changed = true;
}
pixel.Update();
}
}
}
} while (changed);
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
DrawPixel(pixelMatrix[x, y]);
}
}
UpdateImage();
}
public void HitOrMissOperation()
{
outBitmap = new WriteableBitmap(originalBitmap);
outBitmap.Lock();
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
RGBPixel pixel = pixelMatrix[x, y];
RGBPixel[,] neighbours = GetNeighbours(pixel, 3);
pixel.ApplyHitOrMissFilter(Mask.BottomLeftCorner, neighbours);
DrawPixel(pixel);
}
}
UpdateImage();
UpdatePixelMatrix();
}
public void SobelFilterOperation()
{
outBitmap = new WriteableBitmap(originalBitmap);
outBitmap.Lock();
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
RGBPixel pixel = pixelMatrix[x, y];
RGBPixel[,] neighbours = GetNeighbours(pixel, 3);
pixel.ApplySobelFilter(neighbours);
DrawPixel(pixel);
}
}
UpdateImage();
UpdatePixelMatrix();
}
public void LogicalSubtraction(RGBPixel value)
{
byte MAX_COLOR = 255, MIN_COLOR = 0;
if (oldRed == MAX_COLOR && value.Red != MAX_COLOR)
{
Red = MAX_COLOR;
Green = MAX_COLOR;
Blue = MAX_COLOR;
}
else
{
Red = MIN_COLOR;
Green = MIN_COLOR;
Blue = MIN_COLOR;
}
}
public Tuple <int[], int[], int[]> GetHistogram()
{
byte MAX_COLOR = 0xFF;
int[] rH = new int[MAX_COLOR + 1], gH = new int[MAX_COLOR + 1], bH = new int[MAX_COLOR + 1];
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
RGBPixel pixel = pixelMatrix[x, y];
rH[pixel.Red]++;
gH[pixel.Green]++;
bH[pixel.Blue]++;
}
}
return(new Tuple <int[], int[], int[]>(rH, gH, bH));
}
public RGBPixel[,] GetNeighbours(RGBPixel pixel, int maskSize)
{
RGBPixel[,] neighbours = new RGBPixel[maskSize, maskSize];
for (int i = maskSize / 2; i >= -maskSize / 2; i--)
{
for (int j = maskSize / 2; j >= -maskSize / 2; j--)
{
if (pixel.X - i < 0 || pixel.X - i >= width || pixel.Y - j < 0 || pixel.Y - j >= height)
{
neighbours[i + maskSize / 2, j + maskSize / 2] = new RGBPixel(0, 0, 0);
}
else
{
neighbours[i + maskSize / 2, j + maskSize / 2] = pixelMatrix[pixel.X - i, pixel.Y - j];
}
}
}
return(neighbours);
}
public void ReadPixelMatrix()
{
int x = 0, y = 0;
int stride = (originalBitmap.PixelWidth * originalBitmap.Format.BitsPerPixel + 7) / 8;
byte[] pixelArray = new byte[originalBitmap.PixelHeight * stride];
originalBitmap.CopyPixels(pixelArray, stride, 0);
pixelMatrix = new RGBPixel[width, height];
for (int i = 0; i <= pixelArray.Length - 4; i += 4)
{
Point position = new Point(x, y);
RGBPixel pixel = new RGBPixel(position, pixelArray[i + 2], pixelArray[i + 1], pixelArray[i]);
pixelMatrix[x, y] = pixel;
x = (x + 1) % width;
if (x == 0)
{
y++;
}
}
grayscaleHistogram = null;
}
public ColorPickWindow(RGBPixel rgbColor)
{
RGB = rgbColor;
InitializeComponent();
DataContext = RGB;
}
public void Add(RGBPixel value)
{
Red = (byte)(truncate(oldRed + value.Red));
Green = (byte)(truncate(oldGreen + value.Green));
Blue = (byte)(truncate(oldBlue + value.Blue));
}
public void Divide(RGBPixel value)
{
Red = value.Red != 0 ? (byte)(truncate(oldRed / value.Red)) : (byte)255;
Green = value.Green != 0 ? (byte)(truncate(oldGreen / value.Green)) : (byte)255;
Blue = value.Blue != 0 ? (byte)(truncate(oldBlue / value.Blue)) : (byte)255;
}
public void Multiply(RGBPixel value)
{
Red = (byte)(truncate(oldRed * value.Red));
Green = (byte)(truncate(oldGreen * value.Green));
Blue = (byte)(truncate(oldBlue * value.Blue));
}
public void Subtract(RGBPixel value)
{
Red = (byte)(truncate(oldRed - value.Red));
Green = (byte)(truncate(oldGreen - value.Green));
Blue = (byte)(truncate(oldBlue - value.Blue));
}