public override (Bitmap, Bitmap, Bitmap) Transform()
{
for (int i = 0; i < InitBitmap.Width; i++)
{
for (int j = 0; j < InitBitmap.Height; j++)
{
Color p = InitBitmap.GetPixel(i, j);
double R = ((double)p.R / 255.0);
double G = ((double)p.G / 255.0);
double B = ((double)p.B / 255.0);
var XYZ = RGB2XYZ(R, G, B);
var lab = XYZ2LAB(XYZ);
var L = lab[0];
var a = lab[1];
var b = lab[2];
var r1 = a + 127;
var g1 = 127 - a;
var r2 = b + 127;
var b1 = 127 - b;
rbmap.SetPixel(i, j, Color.FromArgb(255, (int)L, (int)L, (int)L));
gbmap.SetPixel(i, j, Color.FromArgb(255, (int)r1, (int)g1, 127));
bbmap.SetPixel(i, j, Color.FromArgb(255, (int)r2, 127, (int)b1));
}
}
return(rbmap.Bitmap, gbmap.Bitmap, bbmap.Bitmap);
}
public override (Bitmap, Bitmap, Bitmap) Transform()
{
for (int i = 0; i < InitBitmap.Width; i++)
{
for (int j = 0; j < InitBitmap.Height; j++)
{
Color p = InitBitmap.GetPixel(i, j);
double Y = 0.299 * p.R + 0.587 * p.G + 0.114 * p.B;
double Cb = -0.1687 * p.R - 0.3313 * p.G + 0.5 * p.B + 128;
double Cr = 0.5 * p.R - 0.4187 * p.G - 0.0813 * p.B + 128;
rbmap.SetPixel(i, j, Color.FromArgb(255, (int)Y, (int)Y, (int)Y));
//Color interpolation
var G1 = 255 - Cb;
var B1 = Cb;
var R1 = Cr;
var G2 = 255 - Cr;
gbmap.SetPixel(i, j, Color.FromArgb(255, 127, (int)G1, (int)B1));
bbmap.SetPixel(i, j, Color.FromArgb(255, (int)R1, (int)G2, 127));
//Gray shades
//gbmap.SetPixel(i, j, Color.FromArgb(255, (int)Cb, (int)Cb, (int)Cb));
//bbmap.SetPixel(i, j, Color.FromArgb(255, (int)Cr, (int)Cr, (int)Cr));
}
}
return(rbmap.Bitmap, gbmap.Bitmap, bbmap.Bitmap);
}
public override (Bitmap, Bitmap, Bitmap) Transform()
{
for (int i = 0; i < InitBitmap.Width; i++)
{
for (int j = 0; j < InitBitmap.Height; j++)
{
double H = 0;
double S = 0;
double V = 0;
Color p = InitBitmap.GetPixel(i, j);
double r = (double)p.R / 255;
double g = (double)p.G / 255;
double b = (double)p.B / 255;
double Cmax = Math.Max(r, Math.Max(g, b));
double Cmin = Math.Min(Math.Min(r, g), b);
double delta = Cmax - Cmin;
if (delta == 0)
{
H = 0;
}
else if (Cmax == r)
{
H = ((g - b) / delta % 6) * 60;
}
else if (Cmax == g)
{
H = ((b - r) / delta + 2) * 60;
}
else if (Cmax == b)
{
H = ((r - g) / delta + 4) * 60;
}
if (H < 0)
{
H += 360;
}
if (Cmax == 0)
{
S = 0;
}
else
{
S = delta / Cmax;
}
V = Cmax;
S *= 100;
V *= 100;
if (H > 255)
{
H = H / 255;
}
rbmap.SetPixel(i, j, Color.FromArgb(255, (int)H, (int)H, (int)H));
gbmap.SetPixel(i, j, Color.FromArgb(255, (int)S, (int)S, (int)S));
bbmap.SetPixel(i, j, Color.FromArgb(255, (int)V, (int)V, (int)V));
}
}
return(rbmap.Bitmap, gbmap.Bitmap, bbmap.Bitmap);
}
