async Task <Uri> GaussianNoise(int EffectPercentage)
{
using (var source = new StorageFileImageSource(imageStorageFile))
using (var contrastEffect = new ContrastEffect(source)
{
Level = 0.6
})
using (var sharpnessEffect = new GaussianNoiseEffect(contrastEffect)
{
Level = (EffectPercentage / 100)
})
{
LastEffect = sharpnessEffect;
return(await SaveToImage());
}
}
private static IImageProvider2 CreateSource(Size renderSize, int grainSize)
{
if ((int)Math.Min(renderSize.Width, renderSize.Height) <= 0)
{
throw new ArgumentOutOfRangeException("renderSize");
}
const int smallerAxisFor5MPixels = 1728;
double scaleFactor = smallerAxisFor5MPixels / Math.Min(renderSize.Width, renderSize.Height);
var noiseImageSize = new Size(renderSize.Width * scaleFactor, renderSize.Height * scaleFactor);
var limitedScaleFactor = Math.Max(1.0, scaleFactor);
var colorImageSource = new ColorImageSource(noiseImageSize, Color.FromArgb(255, 128, 128, 128));
var filterEffect = new GaussianNoiseEffect(colorImageSource, Math.Max(1, grainSize / limitedScaleFactor));
return(filterEffect);
}
private static IImageProvider2 CreateSource(Size renderSize, int grainSize)
{
if ((int)Math.Min(renderSize.Width, renderSize.Height) <= 0)
{
throw new ArgumentOutOfRangeException("renderSize");
}
const int smallerAxisFor5MPixels = 1728;
double scaleFactor = smallerAxisFor5MPixels / Math.Min(renderSize.Width, renderSize.Height);
var noiseImageSize = new Size(renderSize.Width * scaleFactor, renderSize.Height * scaleFactor);
var limitedScaleFactor = Math.Max(1.0, scaleFactor);
var colorImageSource = new ColorImageSource(noiseImageSize, Color.FromArgb(255, 128, 128, 128));
var filterEffect = new GaussianNoiseEffect(colorImageSource, Math.Max(1, grainSize / limitedScaleFactor));
return filterEffect;
}
