Add Benchmark

Author: stefannikolei

tests/ImageSharp.Benchmarks/General/Vectorization/ColorNumerics.cs

@@ -0,0 +1,34 @@
+// Copyright (c) Six Labors.
+// Licensed under the Six Labors Split License.
+
+using System.Numerics;
+using BenchmarkDotNet.Attributes;
+using SixLabors.ImageSharp.Processing;
+
+namespace SixLabors.ImageSharp.Benchmarks.General.Vectorization;
+
+[Config(typeof(Config.MultiFramework))]
+public class ColorNumerics
+{
+    private static Vector4[] input =
+        {
+            new(.5F), new(.5F), new(.5F), new(.5F), new(.5F), new(.5F), new(.5F),
+        };
+
+    [Benchmark]
+    public Vector4 Transform()
+    {
+        Vector4 input = new(.5F);
+        ColorMatrix matrix = KnownFilterMatrices.CreateHueFilter(45F);
+        ImageSharp.ColorNumerics.Transform(ref input, ref matrix);
+
+        return input;
+    }
+
+    [Benchmark]
+    public void Transform_Span()
+    {
+        ColorMatrix matrix = KnownFilterMatrices.CreateHueFilter(45F);
+        ImageSharp.ColorNumerics.Transform(input.AsSpan(), ref matrix);
+    }
+}