/// <summary>
/// Transform to a grayscale image
/// by building the average of all channels
/// </summary>
/// <returns></returns>
public OneChannelBitmap GetGrayscale()
{
var res = new OneChannelBitmap(Width, Height);
for (int i = 0; i < Width; i++)
{
for (int j = 0; j < Height; j++)
{
res.Channel[i, j] = Avg(_r.Channel[i, j], _g.Channel[i, j], _r.Channel[i, j]);
}
}
return(res);
}
/// <summary>
/// Adding two channels
/// </summary>
/// <remarks>Overflow protection</remarks>
/// <param name="a1"></param>
/// <param name="a2"></param>
/// <returns></returns>
public static OneChannelBitmap operator +(OneChannelBitmap a1, OneChannelBitmap a2)
{
var width = a1.Width;
var height = a1.Height;
var res = new OneChannelBitmap(width, height);
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
res._c[i, j] = Sum(a1._c[i, j], a2._c[i, j]);
}
}
return(res);
}
/// <summary>
/// Create a bitmap from Channels
/// </summary>
/// <param name="r">Red source</param>
/// <param name="g">Green source</param>
/// <param name="b">Blue source</param>
public ThreeChannelBitmap(OneChannelBitmap r, OneChannelBitmap g, OneChannelBitmap b)
{
_r = r;
_g = g;
_b = b;
}
/// <summary>
/// Create a bitmap from an byte array
/// </summary>
/// <param name="r">Red source</param>
/// <param name="g">Green source</param>
/// <param name="b">Blue source</param>
public ThreeChannelBitmap(byte[,] r, byte[,] g, byte[,] b)
{
_r = new OneChannelBitmap(r);
_g = new OneChannelBitmap(g);
_b = new OneChannelBitmap(b);
}
/// <summary>
/// Creates an empty bitmap with the desired size
/// </summary>
/// <param name="width">desired width</param>
/// <param name="height">desired height</param>
public ThreeChannelBitmap(int width, int height)
{
_r = new OneChannelBitmap(width, height);
_g = new OneChannelBitmap(width, height);
_b = new OneChannelBitmap(width, height);
}
/// <summary>
/// Create a new bitmap with size 0,0
/// </summary>
public ThreeChannelBitmap()
{
_r = new OneChannelBitmap();
_g = new OneChannelBitmap();
_b = new OneChannelBitmap();
}