public static Task <T> ConcatenateAsync <T>(this IImageProcessor <T> factory, T[,] images, IProgress prog = null)
{
if (factory is null)
{
throw new ArgumentNullException(nameof(factory));
}
if (images is null)
{
throw new ArgumentNullException(nameof(images));
}
return(Task.Run(() => factory.Concatenate(images, prog)));
}