private void ExecuteGaussianBlur(XmlElement element, MagickImage image)
{
Hashtable arguments = new Hashtable();
foreach (XmlAttribute attribute in element.Attributes)
{
if (attribute.Name == "channels")
arguments["channels"] = Variables.GetValue<Channels>(attribute);
else if (attribute.Name == "radius")
arguments["radius"] = Variables.GetValue<double>(attribute);
else if (attribute.Name == "sigma")
arguments["sigma"] = Variables.GetValue<double>(attribute);
}
if (OnlyContains(arguments, "radius", "sigma"))
image.GaussianBlur((double)arguments["radius"], (double)arguments["sigma"]);
else if (OnlyContains(arguments, "radius", "sigma", "channels"))
image.GaussianBlur((double)arguments["radius"], (double)arguments["sigma"], (Channels)arguments["channels"]);
else
throw new ArgumentException("Invalid argument combination for 'gaussianBlur', allowed combinations are: [radius, sigma] [radius, sigma, channels]");
}
public static void blur(string image_path, string output_path, double width = 2, double sigma = 2)
{
using (MagickImage image = new MagickImage(image_path)) {
image.GaussianBlur(width, sigma);
image.Write(output_path);
}
}
public void Test_GaussianBlur()
{
using (MagickImage gaussian = new MagickImage(Files.Builtin.Wizard))
{
gaussian.GaussianBlur(5.5, 10.2);
using (MagickImage blur = new MagickImage(Files.Builtin.Wizard))
{
blur.Blur(5.5, 10.2);
double distortion = blur.Compare(gaussian, ErrorMetric.RootMeanSquared);
#if Q8
Assert.AreEqual(0.00066, distortion, 0.00001);
#elif Q16
Assert.AreEqual(0.0000033, distortion, 0.0000001);
#elif Q16HDRI
Assert.AreEqual(0.0000011, distortion, 0.0000001);
#else
#error Not implemented!
#endif
}
}
}