public static Bitmap ImageToBitmap(ColorFloatImage image)
{
Bitmap B = new Bitmap(image.Width, image.Height, PixelFormat.Format24bppRgb);
LockBitmapInfo lbi = LockBitmap(B);
try
{
for (int j = 0; j < image.Height; j++)
{
for (int i = 0; i < image.Width; i++)
{
ColorFloatPixel p = image[i, j];
lbi.data[lbi.linewidth * j + i * 4] = p.b <0.0f ? (byte)0 : p.b> 255.0f ? (byte)255 : (byte)p.b;
lbi.data[lbi.linewidth * j + i * 4 + 1] = p.g <0.0f ? (byte)0 : p.g> 255.0f ? (byte)255 : (byte)p.g;
lbi.data[lbi.linewidth * j + i * 4 + 2] = p.r <0.0f ? (byte)0 : p.r> 255.0f ? (byte)255 : (byte)p.r;
}
}
}
finally
{
UnlockBitmap(lbi);
}
return(B);
}
public int CompareTo(object o)
{
ColorFloatPixel p = (ColorFloatPixel)o;
float sum1 = this.b * this.b + this.g * this.g + this.r * this.r;
float sum2 = p.b * p.b + p.g * p.g + p.r * p.r;
float dif = sum1 - sum2;
return(dif >= 0 ? (dif > 0 ? -1 : 0) : 1);
}
public static ColorFloatImage BitmapToColorFloatImage(Bitmap B)
{
int W = B.Width, H = B.Height;
ColorFloatImage res = new ColorFloatImage(W, H);
if (B.PixelFormat == PixelFormat.Format8bppIndexed)
{
Color[] pi = B.Palette.Entries;
byte[] pal = new byte[1024];
for (int i = 0; i < pi.Length; i++)
{
Color C = pi[i];
pal[i * 4] = C.B;
pal[i * 4 + 1] = C.G;
pal[i * 4 + 2] = C.R;
pal[i * 4 + 3] = C.A;
}
LockBitmapInfo lbi = LockBitmap(B, PixelFormat.Format8bppIndexed, 1);
try
{
for (int j = 0; j < H; j++)
{
for (int i = 0; i < W; i++)
{
int c = lbi.data[lbi.linewidth * j + i];
int b = pal[c * 4];
int g = pal[c * 4 + 1];
int r = pal[c * 4 + 2];
res[i, j] = new ColorFloatPixel()
{
b = b, g = g, r = r, a = 0.0f
};
}
}
}
finally
{
UnlockBitmap(lbi);
}
}
else
{
LockBitmapInfo lbi = LockBitmap(B);
try
{
for (int j = 0; j < H; j++)
{
for (int i = 0; i < W; i++)
{
int b = lbi.data[lbi.linewidth * j + i * 4];
int g = lbi.data[lbi.linewidth * j + i * 4 + 1];
int r = lbi.data[lbi.linewidth * j + i * 4 + 2];
res[i, j] = new ColorFloatPixel()
{
b = b, g = g, r = r, a = 0.0f
};
}
}
}
finally
{
UnlockBitmap(lbi);
}
}
return(res);
}