public static Bgra32ImageBuffer ReadAssociatedImageBuffer(this OpenSlideImage image, string name, long w, long h)
{
var buffer = new Bgra32ImageBuffer(checked ((int)w), checked ((int)h));
image.ReadAssociatedImage(name, ref buffer.GetPinnableReference());
return(buffer);
}
private static Image <Bgra32> WriteImage(OpenSlideImage image, string name)
{
if (!image.TryGetAssociatedImageDimensions(name, out var dims))
{
throw new KeyNotFoundException();
}
var dest = new Image <Bgra32>((int)dims.Width, (int)dims.Height);
image.ReadAssociatedImage(name, ref Unsafe.As <Bgra32, byte>(ref MemoryMarshal.GetReference(dest.GetPixelSpan())));
return(dest);
}