Visual Layer - Saturation Effect

DefaultView.cs

#region Saturation Effect

var graphicsEffect = new SaturationEffect
{
    Saturation = 0.0f,
    Source = new CompositionEffectSourceParameter("input")
};

var effectFactory = _compositor.CreateEffectFactory(graphicsEffect);
var effectBrush = effectFactory.CreateBrush();
effectBrush.SetSourceParameter("input", imageBrush);

visual.Brush = effectBrush;

#endregion