public void effectLighten(PixelClassRGB a, PixelClassRGB b)
{
if (b.R <= a.R)
{
R = a.R;
}
else
{
R = b.R;
}
if (b.G <= a.G)
{
G = a.G;
}
else
{
G = b.G;
}
if (b.B <= a.B)
{
B = a.B;
}
else
{
B = b.B;
}
}
public PixelClassRGB hsvToRGB(int h, byte s, byte v)
{
byte r = 0;
byte g = 0;
byte b = 0;
int Hi = Convert.ToInt32(h / 60);
byte Vmin = Convert.ToByte((255 - s) * v / 255);
int a = Convert.ToInt32((v - Vmin) * (h % 60) / 60);
byte Vinc = Convert.ToByte(Vmin + a);
byte Vdec = Convert.ToByte(v - a);
switch (Hi)
{
case 0: { r = v; g = Vinc; b = Vmin; break; }
case 1: { r = Vdec; g = v; b = Vmin; break; }
case 2: { r = Vmin; g = v; b = Vinc; break; }
case 3: { r = Vmin; g = Vdec; b = v; break; }
case 4: { r = Vinc; g = Vmin; b = v; break; }
case 5: { r = v; g = Vmin; b = Vdec; break; }
}
PixelClassRGB rgbPix = new PixelClassRGB(r, g, b);
return(rgbPix);
}
public void readImage(Bitmap bmp)
{
var watchread = System.Diagnostics.Stopwatch.StartNew();
img = new PixelClassRGB[bmp.Width, bmp.Height];
imgnew = new PixelClassRGB[bmp.Width, bmp.Height];
imghsv = new PixelClassHSV[bmp.Width, bmp.Height];
imghsvnew = new PixelClassHSV[bmp.Width, bmp.Height];
imgcmyk = new PixelClassCMYK[bmp.Width, bmp.Height];
imgyuv = new PixelClassYUV[bmp.Width, bmp.Height];
hist1 = new Histogram();
hist2 = new Histogram();
//nolasām datus no attēla
var bmpData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly, bmp.PixelFormat);
//nolasām atmiņā datus par attēlu
IntPtr ptr = IntPtr.Zero; //mēģinām nolasīt rindu
int pixelComponents; //kanālu skaits
if (bmpData.PixelFormat == PixelFormat.Format24bppRgb) //ja ir 24 bitu formāts
{
pixelComponents = 3; //kanālu skaits
}
else if (bmpData.PixelFormat == PixelFormat.Format32bppRgb) //ja ir 32 bitu formāts
{
pixelComponents = 4;
}
else
{
pixelComponents = 0;
}
var line = new byte[bmp.Width * pixelComponents]; //the length of row array we scan from image
for (int y = 0; y < bmpData.Height; y++)
{
ptr = bmpData.Scan0 + y * bmpData.Stride;
//nolasām no pirmā pixeļa un stride-pixeļu rinas platums
Marshal.Copy(ptr, line, 0, line.Length);
for (int x = 0; x < bmpData.Width; x++)
{
img[x, y] = new PixelClassRGB(line[pixelComponents * x + 2], line[pixelComponents * x + 1], line[pixelComponents * x]); //BGR
imgnew[x, y] = new PixelClassRGB(line[pixelComponents * x + 2], line[pixelComponents * x + 1], line[pixelComponents * x]); //BGR
imghsv[x, y] = new PixelClassHSV(img[x, y].R, img[x, y].G, img[x, y].B);
imghsvnew[x, y] = new PixelClassHSV(img[x, y].R, img[x, y].G, img[x, y].B);
imgcmyk[x, y] = new PixelClassCMYK(img[x, y].R, img[x, y].G, img[x, y].B);
imgyuv[x, y] = new PixelClassYUV(img[x, y].R, img[x, y].G, img[x, y].B);
img[x, y].X = x - bmpData.Width / 2;
img[x, y].Y = y - bmpData.Height / 2;
}
}
bmp.UnlockBits(bmpData); //nolasīšanas rezultāts
hist1.readHistogramHSV(img, imghsv);
hist2.readHistogramHSV(imgnew, imghsv);
watchread.Stop();
var elapsedMs = watchread.ElapsedMilliseconds;
Console.WriteLine("Image Read time: " + elapsedMs);
}
public PixelClassRGB cmykToRGB(float c, float m, float y, float k)
{
byte r, g, b;
r = Convert.ToByte(255 * (1 - c) * (1 - k));
g = Convert.ToByte(255 * (1 - m) * (1 - k));
b = Convert.ToByte(255 * (1 - y) * (1 - k));
PixelClassRGB rgbPix = new PixelClassRGB(r, g, b);
return(rgbPix);
}
public PixelClassRGB yuvToRGB(float Yy, float U, float Vv)
{
byte r, g, b;
r = Convert.ToByte(ClampYUV(Yy + 1.13983f * (Vv - 128f)));
g = Convert.ToByte(ClampYUV(Yy - 0.39465f * (U - 128f) - 0.58060f * (Vv - 128f)));
b = Convert.ToByte(ClampYUV(Yy + 2.03211f * (U - 128f)));/*
* byte R = Convert.ToByte(r);
* byte G = Convert.ToByte(g);
* byte B = Convert.ToByte(b);*/
PixelClassRGB rgbPix = new PixelClassRGB(r, g, b);
return(rgbPix);
}
public void effectMultiply(PixelClassRGB a, PixelClassRGB b)
{
double first = (double)a.R / 255;
double second = (double)b.R / 255;
R = Convert.ToByte(first * second * 255);
first = (double)a.G / 255;
second = (double)b.G / 255;
G = Convert.ToByte(first * second * 255);
first = (double)a.B / 255;
second = (double)b.B / 255;
B = Convert.ToByte(first * second * 255);
}
public void effectScreen(PixelClassRGB a, PixelClassRGB b)
{
double first = (double)a.R / 255;
double second = (double)b.R / 255;
R = Convert.ToByte((1 - (1 - first) * (1 - second)) * 255);
first = (double)a.G / 255;
second = (double)b.G / 255;
G = Convert.ToByte((1 - (1 - first) * (1 - second)) * 255);
first = (double)a.B / 255;
second = (double)b.B / 255;
B = Convert.ToByte((1 - (1 - first) * (1 - second)) * 255);
}
public void effectSubtract(PixelClassRGB a, PixelClassRGB b)
{
if (a.R + b.R - 255 > 255)
{
R = 255;
}
else if (a.R + b.R - 255 < 0)
{
R = 0;
}
else
{
R = Convert.ToByte(a.R + b.R - 255);
}
if (a.G + b.G - 255 > 255)
{
G = 255;
}
else if (a.G + b.G - 255 < 0)
{
G = 0;
}
else
{
G = Convert.ToByte(a.G + b.G - 255);
}
if (a.B + b.B - 255 > 255)
{
B = 255;
}
else if (a.B + b.B - 255 < 0)
{
B = 0;
}
else
{
B = Convert.ToByte(a.B + b.B - 255);
}
}
public void effectAddition(PixelClassRGB a, PixelClassRGB b)
{
if (a.R + b.R > 255)
{
R = 255;
}
else if (a.R + b.R < 0)
{
R = 0;
}
else
{
R = Convert.ToByte(a.R + b.R);
}
if (a.G + b.G > 255)
{
G = 255;
}
else if (a.G + b.G < 0)
{
G = 0;
}
else
{
G = Convert.ToByte(a.G + b.G);
}
if (a.B + b.B > 255)
{
B = 255;
}
else if (a.B + b.B < 0)
{
B = 0;
}
else
{
B = Convert.ToByte(a.B + b.B);
}
}
public void effectSoftLight(PixelClassRGB a, PixelClassRGB b)
{
double first;
double second;
first = (double)a.R / 255;
second = (double)b.R / 255;
if (first <= 0.5)
{
R = Convert.ToByte(((2 * first - 1) * (second - Math.Pow(second, 2)) + second) * 255);
}
else
{
R = Convert.ToByte(((2 * first - 1) * (Math.Sqrt(second) - second) + second) * 255);
}
first = (double)a.G / 255;
second = (double)b.G / 255;
if (first <= 0.5)
{
G = Convert.ToByte(((2 * first - 1) * (second - Math.Pow(second, 2)) + second) * 255);
}
else
{
G = Convert.ToByte(((2 * first - 1) * (Math.Sqrt(second) - second) + second) * 255);
}
first = (double)a.B / 255;
second = (double)b.B / 255;
if (first <= 0.5)
{
B = Convert.ToByte(((2 * first - 1) * (second - Math.Pow(second, 2)) + second) * 255);
}
else
{
B = Convert.ToByte(((2 * first - 1) * (Math.Sqrt(second) - second) + second) * 255);
}
}
public void effectHardLight(PixelClassRGB a, PixelClassRGB b)
{
double first;
double second;
first = (double)a.R / 255;
second = (double)b.R / 255;
if (first <= 0.5)
{
R = Convert.ToByte((2 * first * second) * 255);
}
else
{
R = Convert.ToByte((1 - 2 * (1 - first) * (1 - second)) * 255);
}
first = (double)a.G / 255;
second = (double)b.G / 255;
if (first <= 0.5)
{
G = Convert.ToByte((2 * first * second) * 255);
}
else
{
G = Convert.ToByte((1 - 2 * (1 - first) * (1 - second)) * 255);
}
first = (double)a.B / 255;
second = (double)b.B / 255;
if (first <= 0.5)
{
B = Convert.ToByte((2 * first * second) * 255);
}
else
{
B = Convert.ToByte((1 - 2 * (1 - first) * (1 - second)) * 255);
}
}
public void effectDifference(PixelClassRGB a, PixelClassRGB b)
{
R = Convert.ToByte(Math.Abs(a.R - b.R));
G = Convert.ToByte(Math.Abs(a.G - b.G));
B = Convert.ToByte(Math.Abs(a.B - b.B));
}
public void effectOpacity(PixelClassRGB a, PixelClassRGB b, double d)
{
R = Convert.ToByte(d * a.R + (1 - d) * b.R);
G = Convert.ToByte(d * a.G + (1 - d) * b.G);
B = Convert.ToByte(d * a.B + (1 - d) * b.B);
}