private static Grid ConvertToGrayscale(WritableLockBitImage bitmap)
{
return(Grid.Op(
(i, j) => ConvertColorToGrayscaleDouble(bitmap.GetPixel(i, j)),
new Grid(bitmap.Width, bitmap.Height)
));
}
/// <summary>
/// Copy constructor that clones the other WritableLockbitImage. This will clone all
/// of the internal data from the passed in WritableLockBitImage, with the exception
/// of whether it was locked.
/// </summary>
public WritableLockBitImage(WritableLockBitImage other)
{
_bitDepth = Image.GetPixelFormatSize(other.PixelFormat);
if (_bitDepth != 8 && _bitDepth != 24 && _bitDepth != 32)
{
throw new ArgumentException("Only 8, 24, and 32 bit pixels are supported.");
}
_width = other.Width;
_height = other.Height;
_disposed = _locked = false;
_bitmap = new Bitmap(Width, Height);
_bitmapData = _bitmap.LockBits(new Rectangle(0, 0, Width, Height),
ImageLockMode.ReadWrite,
other.PixelFormat
);
// Copy over bitmap data manually
for (int row = 0; row < Height; row++)
{
for (int col = 0; col < Width; col++)
{
SetPixel(col, row, other.GetPixel(col, row));
}
}
}