ImageFusionFilter Class

public ref class ImageFusionFilter sealed : IFilter, 
	__IImageFusionFilterPublicNonVirtuals

// Create effect collection with the source stream
using (var filterEffect = new FilterEffect(source))
{
    ImageFusionFilter filter = new ImageFusionFilter(fusionSource, maskSource, true);

    filterEffect.Filters = new IFilter[] { filter };

    // Create a target where the filtered image will be rendered to
    var target = new WriteableBitmap(width, height);

    // Create a new renderer which outputs WriteableBitmaps
    using (var renderer = new WriteableBitmapRenderer(filterEffect, target))
    {
        // Render the image with the filter(s)
        await renderer.RenderAsync();

        // Set the output image to Image control as a source
        ImageControl.Source = target;

       await SaveEffectAsync(filterEffect, "ImageFusionFilter.jpg", outputImageSize);
    }
}