From 83221617166219001e4193034985ff8f1e6f38bd Mon Sep 17 00:00:00 2001
From: James Jackson-South <james_south@hotmail.com>
Date: Fri, 22 Dec 2017 01:08:27 +1100
Subject: [PATCH] Use test pattern files for tests

---
 .../Processing/ColorMatrix/Grayscale.cs           |  2 +-
 .../{ColorMatrix => Filters}/BlackWhiteTest.cs    |  8 ++++----
 .../{ColorMatrix => Filters}/BrightnessTest.cs    |  6 +++---
 .../ColorBlindnessTest.cs                         |  8 ++++----
 .../{ColorMatrix => Filters}/ContrastTest.cs      |  6 +++---
 .../{ColorMatrix => Filters}/FilterTest.cs        | 15 +++++++++------
 .../{ColorMatrix => Filters}/GrayscaleTest.cs     |  7 ++++---
 .../{ColorMatrix => Filters}/HueTest.cs           |  8 ++++----
 .../{ColorMatrix => Filters}/InvertTest.cs        |  6 +++---
 .../{ColorMatrix => Filters}/KodachromeTest.cs    |  8 ++++----
 .../{ColorMatrix => Filters}/LomographTest.cs     |  8 ++++----
 .../{ColorMatrix => Filters}/OpacityTest.cs       |  6 +++---
 .../{ColorMatrix => Filters}/PolaroidTest.cs      |  8 ++++----
 .../{ColorMatrix => Filters}/SaturateTest.cs      |  8 ++++----
 .../{ColorMatrix => Filters}/SepiaTest.cs         |  8 ++++----
 15 files changed, 58 insertions(+), 54 deletions(-)
 rename tests/ImageSharp.Tests/Processing/Processors/{ColorMatrix => Filters}/BlackWhiteTest.cs (80%)
 rename tests/ImageSharp.Tests/Processing/Processors/{ColorMatrix => Filters}/BrightnessTest.cs (83%)
 rename tests/ImageSharp.Tests/Processing/Processors/{ColorMatrix => Filters}/ColorBlindnessTest.cs (84%)
 rename tests/ImageSharp.Tests/Processing/Processors/{ColorMatrix => Filters}/ContrastTest.cs (83%)
 rename tests/ImageSharp.Tests/Processing/Processors/{ColorMatrix => Filters}/FilterTest.cs (66%)
 rename tests/ImageSharp.Tests/Processing/Processors/{ColorMatrix => Filters}/GrayscaleTest.cs (87%)
 rename tests/ImageSharp.Tests/Processing/Processors/{ColorMatrix => Filters}/HueTest.cs (80%)
 rename tests/ImageSharp.Tests/Processing/Processors/{ColorMatrix => Filters}/InvertTest.cs (84%)
 rename tests/ImageSharp.Tests/Processing/Processors/{ColorMatrix => Filters}/KodachromeTest.cs (80%)
 rename tests/ImageSharp.Tests/Processing/Processors/{ColorMatrix => Filters}/LomographTest.cs (80%)
 rename tests/ImageSharp.Tests/Processing/Processors/{ColorMatrix => Filters}/OpacityTest.cs (84%)
 rename tests/ImageSharp.Tests/Processing/Processors/{ColorMatrix => Filters}/PolaroidTest.cs (80%)
 rename tests/ImageSharp.Tests/Processing/Processors/{ColorMatrix => Filters}/SaturateTest.cs (82%)
 rename tests/ImageSharp.Tests/Processing/Processors/{ColorMatrix => Filters}/SepiaTest.cs (80%)

diff --git a/src/ImageSharp/Processing/ColorMatrix/Grayscale.cs b/src/ImageSharp/Processing/ColorMatrix/Grayscale.cs
index 4fa80a183f..ee43d5b016 100644
--- a/src/ImageSharp/Processing/ColorMatrix/Grayscale.cs
+++ b/src/ImageSharp/Processing/ColorMatrix/Grayscale.cs
@@ -103,7 +103,7 @@ namespace SixLabors.ImageSharp
         /// <returns>The <see cref="Image{TPixel}"/>.</returns>
         public static IImageProcessingContext<TPixel> Grayscale<TPixel>(this IImageProcessingContext<TPixel> source, GrayscaleMode mode, Rectangle rectangle)
             where TPixel : struct, IPixel<TPixel>
-        => Grayscale(source, GrayscaleMode.Bt709, 1F, rectangle);
+        => Grayscale(source, mode, 1F, rectangle);
 
         /// <summary>
         /// Applies Grayscale toning to the image using the given amount.
diff --git a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/BlackWhiteTest.cs b/tests/ImageSharp.Tests/Processing/Processors/Filters/BlackWhiteTest.cs
similarity index 80%
rename from tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/BlackWhiteTest.cs
rename to tests/ImageSharp.Tests/Processing/Processors/Filters/BlackWhiteTest.cs
index c0481809af..601f30a79e 100644
--- a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/BlackWhiteTest.cs
+++ b/tests/ImageSharp.Tests/Processing/Processors/Filters/BlackWhiteTest.cs
@@ -12,7 +12,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
     public class BlackWhiteTest : FileTestBase
     {
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), DefaultPixelType)]
+        [WithTestPatternImages(100, 100, DefaultPixelType)]
         public void ImageShouldApplyBlackWhiteFilter<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : struct, IPixel<TPixel>
         {
@@ -24,14 +24,14 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
         }
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), DefaultPixelType)]
+        [WithTestPatternImages(100, 100, DefaultPixelType)]
         public void ImageShouldApplyBlackWhiteFilterInBox<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : struct, IPixel<TPixel>
         {
             using (Image<TPixel> source = provider.GetImage())
-            using (var image = source.Clone())
+            using (Image<TPixel> image = source.Clone())
             {
-                var bounds = new Rectangle(10, 10, image.Width / 2, image.Height / 2);
+                var bounds = new Rectangle(image.Width / 4, image.Width / 4, image.Width / 2, image.Height / 2);
 
                 image.Mutate(x => x.BlackWhite(bounds));
                 image.DebugSave(provider);
diff --git a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/BrightnessTest.cs b/tests/ImageSharp.Tests/Processing/Processors/Filters/BrightnessTest.cs
similarity index 83%
rename from tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/BrightnessTest.cs
rename to tests/ImageSharp.Tests/Processing/Processors/Filters/BrightnessTest.cs
index 44804d0b26..b0a830b9d9 100644
--- a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/BrightnessTest.cs
+++ b/tests/ImageSharp.Tests/Processing/Processors/Filters/BrightnessTest.cs
@@ -19,7 +19,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
         };
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), nameof(BrightnessValues), DefaultPixelType)]
+        [WithTestPatternImages(nameof(BrightnessValues), 100, 100, DefaultPixelType)]
         public void ImageShouldApplyBrightnessFilter<TPixel>(TestImageProvider<TPixel> provider, float value)
             where TPixel : struct, IPixel<TPixel>
         {
@@ -31,14 +31,14 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
         }
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), nameof(BrightnessValues), DefaultPixelType)]
+        [WithTestPatternImages(nameof(BrightnessValues), 100, 100, DefaultPixelType)]
         public void ImageShouldApplyBrightnessFilterInBox<TPixel>(TestImageProvider<TPixel> provider, float value)
             where TPixel : struct, IPixel<TPixel>
         {
             using (Image<TPixel> source = provider.GetImage())
             using (Image<TPixel> image = source.Clone())
             {
-                var bounds = new Rectangle(10, 10, image.Width / 2, image.Height / 2);
+                var bounds = new Rectangle(image.Width / 4, image.Width / 4, image.Width / 2, image.Height / 2);
 
                 image.Mutate(x => x.Brightness(value, bounds));
                 image.DebugSave(provider, value);
diff --git a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/ColorBlindnessTest.cs b/tests/ImageSharp.Tests/Processing/Processors/Filters/ColorBlindnessTest.cs
similarity index 84%
rename from tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/ColorBlindnessTest.cs
rename to tests/ImageSharp.Tests/Processing/Processors/Filters/ColorBlindnessTest.cs
index cbc4a2810e..2342fe932d 100644
--- a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/ColorBlindnessTest.cs
+++ b/tests/ImageSharp.Tests/Processing/Processors/Filters/ColorBlindnessTest.cs
@@ -26,7 +26,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
         };
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), nameof(ColorBlindnessFilters), DefaultPixelType)]
+        [WithTestPatternImages(nameof(ColorBlindnessFilters), 100, 100, DefaultPixelType)]
         public void ImageShouldApplyColorBlindnessFilter<TPixel>(TestImageProvider<TPixel> provider, ColorBlindness colorBlindness)
             where TPixel : struct, IPixel<TPixel>
         {
@@ -38,14 +38,14 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
         }
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), nameof(ColorBlindnessFilters), DefaultPixelType)]
+        [WithTestPatternImages(nameof(ColorBlindnessFilters), 100, 100, DefaultPixelType)]
         public void ImageShouldApplyColorBlindnessFilterInBox<TPixel>(TestImageProvider<TPixel> provider, ColorBlindness colorBlindness)
             where TPixel : struct, IPixel<TPixel>
         {
             using (Image<TPixel> source = provider.GetImage())
-            using (var image = source.Clone())
+            using (Image<TPixel> image = source.Clone())
             {
-                var bounds = new Rectangle(10, 10, image.Width / 2, image.Height / 2);
+                var bounds = new Rectangle(image.Width / 4, image.Width / 4, image.Width / 2, image.Height / 2);
 
                 image.Mutate(x => x.ColorBlindness(colorBlindness, bounds));
                 image.DebugSave(provider, colorBlindness.ToString());
diff --git a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/ContrastTest.cs b/tests/ImageSharp.Tests/Processing/Processors/Filters/ContrastTest.cs
similarity index 83%
rename from tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/ContrastTest.cs
rename to tests/ImageSharp.Tests/Processing/Processors/Filters/ContrastTest.cs
index 9117ff1b9f..67b86788aa 100644
--- a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/ContrastTest.cs
+++ b/tests/ImageSharp.Tests/Processing/Processors/Filters/ContrastTest.cs
@@ -19,7 +19,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
         };
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), nameof(ContrastValues), DefaultPixelType)]
+        [WithTestPatternImages(nameof(ContrastValues), 100, 100, DefaultPixelType)]
         public void ImageShouldApplyContrastFilter<TPixel>(TestImageProvider<TPixel> provider, float value)
             where TPixel : struct, IPixel<TPixel>
         {
@@ -31,14 +31,14 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
         }
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), nameof(ContrastValues), DefaultPixelType)]
+        [WithTestPatternImages(nameof(ContrastValues), 100, 100, DefaultPixelType)]
         public void ImageShouldApplyContrastFilterInBox<TPixel>(TestImageProvider<TPixel> provider, float value)
             where TPixel : struct, IPixel<TPixel>
         {
             using (Image<TPixel> source = provider.GetImage())
             using (Image<TPixel> image = source.Clone())
             {
-                var bounds = new Rectangle(10, 10, image.Width / 2, image.Height / 2);
+                var bounds = new Rectangle(image.Width / 4, image.Width / 4, image.Width / 2, image.Height / 2);
 
                 image.Mutate(x => x.Contrast(value, bounds));
                 image.DebugSave(provider, value);
diff --git a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/FilterTest.cs b/tests/ImageSharp.Tests/Processing/Processors/Filters/FilterTest.cs
similarity index 66%
rename from tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/FilterTest.cs
rename to tests/ImageSharp.Tests/Processing/Processors/Filters/FilterTest.cs
index 80447ebf8b..9053308680 100644
--- a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/FilterTest.cs
+++ b/tests/ImageSharp.Tests/Processing/Processors/Filters/FilterTest.cs
@@ -14,31 +14,34 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
     public class FilterTest : FileTestBase
     {
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), DefaultPixelType)]
+        [WithTestPatternImages(100, 100, DefaultPixelType)]
         public void ImageShouldApplyFilter<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : struct, IPixel<TPixel>
         {
             using (Image<TPixel> image = provider.GetImage())
             {
                 Matrix4x4 brightness = MatrixFilters.CreateBrightnessFilter(0.9F);
-                Matrix4x4 contrast = MatrixFilters.CreateContrastFilter(1.2F);
+                Matrix4x4 hue = MatrixFilters.CreateHueFilter(180F);
                 Matrix4x4 saturation = MatrixFilters.CreateSaturateFilter(1.5F);
-                image.Mutate(x => x.Filter(brightness * contrast * saturation));
+                image.Mutate(x => x.Filter(brightness * hue * saturation));
                 image.DebugSave(provider);
             }
         }
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), DefaultPixelType)]
+        [WithTestPatternImages(100, 100, DefaultPixelType)]
         public void ImageShouldApplyFilterInBox<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : struct, IPixel<TPixel>
         {
             using (Image<TPixel> source = provider.GetImage())
             using (Image<TPixel> image = source.Clone())
             {
-                var bounds = new Rectangle(10, 10, image.Width / 2, image.Height / 2);
+                var bounds = new Rectangle(image.Width / 4, image.Width / 4, image.Width / 2, image.Height / 2);
 
-                image.Mutate(x => x.Filter(MatrixFilters.CreateBrightnessFilter(1.2F) * MatrixFilters.CreateContrastFilter(1.2F), bounds));
+                Matrix4x4 brightness = MatrixFilters.CreateBrightnessFilter(0.9F);
+                Matrix4x4 hue = MatrixFilters.CreateHueFilter(180F);
+                Matrix4x4 saturation = MatrixFilters.CreateSaturateFilter(1.5F);
+                image.Mutate(x => x.Filter(brightness * hue * saturation, bounds));
                 image.DebugSave(provider);
 
                 ImageComparer.Tolerant().VerifySimilarityIgnoreRegion(source, image, bounds);
diff --git a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/GrayscaleTest.cs b/tests/ImageSharp.Tests/Processing/Processors/Filters/GrayscaleTest.cs
similarity index 87%
rename from tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/GrayscaleTest.cs
rename to tests/ImageSharp.Tests/Processing/Processors/Filters/GrayscaleTest.cs
index c870659a6b..23d514f352 100644
--- a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/GrayscaleTest.cs
+++ b/tests/ImageSharp.Tests/Processing/Processors/Filters/GrayscaleTest.cs
@@ -24,8 +24,8 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
         /// Use test patterns over loaded images to save decode time.
         /// </summary>
         [Theory]
-        [WithTestPatternImages(nameof(GrayscaleModeTypes), 50, 50, DefaultPixelType)]
-        public void ImageShouldApplyGrayscaleFilterAll<TPixel>(TestImageProvider<TPixel> provider, GrayscaleMode value)
+        [WithTestPatternImages(nameof(GrayscaleModeTypes), 100, 100, DefaultPixelType)]
+        public void ImageShouldApplyGrayscaleFilter<TPixel>(TestImageProvider<TPixel> provider, GrayscaleMode value)
             where TPixel : struct, IPixel<TPixel>
         {
             using (Image<TPixel> image = provider.GetImage())
@@ -45,7 +45,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
         }
 
         [Theory]
-        [WithTestPatternImages(nameof(GrayscaleModeTypes), 50, 50, DefaultPixelType)]
+        [WithTestPatternImages(nameof(GrayscaleModeTypes), 100, 100, DefaultPixelType)]
         public void ImageShouldApplyGrayscaleFilterInBox<TPixel>(TestImageProvider<TPixel> provider, GrayscaleMode value)
             where TPixel : struct, IPixel<TPixel>
         {
@@ -53,6 +53,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
             using (Image<TPixel> image = source.Clone())
             {
                 var bounds = new Rectangle(image.Width / 4, image.Height / 4, image.Width / 2, image.Height / 2);
+
                 image.Mutate(x => x.Grayscale(value, bounds));
                 image.DebugSave(provider, value.ToString());
 
diff --git a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/HueTest.cs b/tests/ImageSharp.Tests/Processing/Processors/Filters/HueTest.cs
similarity index 80%
rename from tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/HueTest.cs
rename to tests/ImageSharp.Tests/Processing/Processors/Filters/HueTest.cs
index 743d46efaa..5a34595a62 100644
--- a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/HueTest.cs
+++ b/tests/ImageSharp.Tests/Processing/Processors/Filters/HueTest.cs
@@ -19,7 +19,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
         };
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), nameof(HueValues), DefaultPixelType)]
+        [WithTestPatternImages(nameof(HueValues), 100, 100, DefaultPixelType)]
         public void ImageShouldApplyHueFilter<TPixel>(TestImageProvider<TPixel> provider, int value)
             where TPixel : struct, IPixel<TPixel>
         {
@@ -31,14 +31,14 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
         }
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), nameof(HueValues), DefaultPixelType)]
+        [WithTestPatternImages(nameof(HueValues), 100, 100, DefaultPixelType)]
         public void ImageShouldApplyHueFilterInBox<TPixel>(TestImageProvider<TPixel> provider, int value)
             where TPixel : struct, IPixel<TPixel>
         {
             using (Image<TPixel> source = provider.GetImage())
-            using (var image = source.Clone())
+            using (Image<TPixel> image = source.Clone())
             {
-                var bounds = new Rectangle(10, 10, image.Width / 2, image.Height / 2);
+                var bounds = new Rectangle(image.Width / 4, image.Height / 4, image.Width / 2, image.Height / 2);
 
                 image.Mutate(x => x.Hue(value, bounds));
                 image.DebugSave(provider, value);
diff --git a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/InvertTest.cs b/tests/ImageSharp.Tests/Processing/Processors/Filters/InvertTest.cs
similarity index 84%
rename from tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/InvertTest.cs
rename to tests/ImageSharp.Tests/Processing/Processors/Filters/InvertTest.cs
index 9536b36f16..2199e691fa 100644
--- a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/InvertTest.cs
+++ b/tests/ImageSharp.Tests/Processing/Processors/Filters/InvertTest.cs
@@ -12,7 +12,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
     public class InvertTest : FileTestBase
     {
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), DefaultPixelType)]
+        [WithTestPatternImages(100, 100, DefaultPixelType)]
         public void ImageShouldApplyInvertFilter<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : struct, IPixel<TPixel>
         {
@@ -24,14 +24,14 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
         }
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), DefaultPixelType)]
+        [WithTestPatternImages(100, 100, DefaultPixelType)]
         public void ImageShouldApplyInvertFilterInBox<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : struct, IPixel<TPixel>
         {
             using (Image<TPixel> source = provider.GetImage())
             using (Image<TPixel> image = source.Clone())
             {
-                var bounds = new Rectangle(10, 10, image.Width / 2, image.Height / 2);
+                var bounds = new Rectangle(image.Width / 4, image.Height / 4, image.Width / 2, image.Height / 2);
 
                 image.Mutate(x => x.Invert(bounds));
                 image.DebugSave(provider);
diff --git a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/KodachromeTest.cs b/tests/ImageSharp.Tests/Processing/Processors/Filters/KodachromeTest.cs
similarity index 80%
rename from tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/KodachromeTest.cs
rename to tests/ImageSharp.Tests/Processing/Processors/Filters/KodachromeTest.cs
index 587ff0c013..6d95baaef0 100644
--- a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/KodachromeTest.cs
+++ b/tests/ImageSharp.Tests/Processing/Processors/Filters/KodachromeTest.cs
@@ -12,7 +12,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
     public class KodachromeTest : FileTestBase
     {
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), DefaultPixelType)]
+        [WithTestPatternImages(100, 100, DefaultPixelType)]
         public void ImageShouldApplyKodachromeFilter<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : struct, IPixel<TPixel>
         {
@@ -24,14 +24,14 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
         }
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), DefaultPixelType)]
+        [WithTestPatternImages(100, 100, DefaultPixelType)]
         public void ImageShouldApplyKodachromeFilterInBox<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : struct, IPixel<TPixel>
         {
             using (Image<TPixel> source = provider.GetImage())
-            using (var image = source.Clone())
+            using (Image<TPixel> image = source.Clone())
             {
-                var bounds = new Rectangle(10, 10, image.Width / 2, image.Height / 2);
+                var bounds = new Rectangle(image.Width / 4, image.Height / 4, image.Width / 2, image.Height / 2);
 
                 image.Mutate(x => x.Kodachrome(bounds));
                 image.DebugSave(provider);
diff --git a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/LomographTest.cs b/tests/ImageSharp.Tests/Processing/Processors/Filters/LomographTest.cs
similarity index 80%
rename from tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/LomographTest.cs
rename to tests/ImageSharp.Tests/Processing/Processors/Filters/LomographTest.cs
index 7087ac7b98..2f9cd4319b 100644
--- a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/LomographTest.cs
+++ b/tests/ImageSharp.Tests/Processing/Processors/Filters/LomographTest.cs
@@ -12,7 +12,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
     public class LomographTest : FileTestBase
     {
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), DefaultPixelType)]
+        [WithTestPatternImages(100, 100, DefaultPixelType)]
         public void ImageShouldApplyLomographFilter<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : struct, IPixel<TPixel>
         {
@@ -24,14 +24,14 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
         }
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), DefaultPixelType)]
+        [WithTestPatternImages(100, 100, DefaultPixelType)]
         public void ImageShouldApplyLomographFilterInBox<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : struct, IPixel<TPixel>
         {
             using (Image<TPixel> source = provider.GetImage())
-            using (var image = source.Clone())
+            using (Image<TPixel> image = source.Clone())
             {
-                var bounds = new Rectangle(10, 10, image.Width / 2, image.Height / 2);
+                var bounds = new Rectangle(image.Width / 4, image.Height / 4, image.Width / 2, image.Height / 2);
 
                 image.Mutate(x => x.Lomograph(bounds));
                 image.DebugSave(provider);
diff --git a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/OpacityTest.cs b/tests/ImageSharp.Tests/Processing/Processors/Filters/OpacityTest.cs
similarity index 84%
rename from tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/OpacityTest.cs
rename to tests/ImageSharp.Tests/Processing/Processors/Filters/OpacityTest.cs
index 2815233f24..12bf93299a 100644
--- a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/OpacityTest.cs
+++ b/tests/ImageSharp.Tests/Processing/Processors/Filters/OpacityTest.cs
@@ -19,7 +19,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
         };
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), nameof(AlphaValues), DefaultPixelType)]
+        [WithTestPatternImages(nameof(AlphaValues), 100, 100, DefaultPixelType)]
         public void ImageShouldApplyAlphaFilter<TPixel>(TestImageProvider<TPixel> provider, float value)
             where TPixel : struct, IPixel<TPixel>
         {
@@ -31,14 +31,14 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Effects
         }
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), nameof(AlphaValues), DefaultPixelType)]
+        [WithTestPatternImages(nameof(AlphaValues), 100, 100, DefaultPixelType)]
         public void ImageShouldApplyAlphaFilterInBox<TPixel>(TestImageProvider<TPixel> provider, float value)
             where TPixel : struct, IPixel<TPixel>
         {
             using (Image<TPixel> source = provider.GetImage())
             using (Image<TPixel> image = source.Clone())
             {
-                var bounds = new Rectangle(10, 10, image.Width / 2, image.Height / 2);
+                var bounds = new Rectangle(image.Width / 4, image.Height / 4, image.Width / 2, image.Height / 2);
 
                 image.Mutate(x => x.Opacity(value, bounds));
                 image.DebugSave(provider, value);
diff --git a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/PolaroidTest.cs b/tests/ImageSharp.Tests/Processing/Processors/Filters/PolaroidTest.cs
similarity index 80%
rename from tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/PolaroidTest.cs
rename to tests/ImageSharp.Tests/Processing/Processors/Filters/PolaroidTest.cs
index 57d6cdd1df..44e69c09ee 100644
--- a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/PolaroidTest.cs
+++ b/tests/ImageSharp.Tests/Processing/Processors/Filters/PolaroidTest.cs
@@ -12,7 +12,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
     public class PolaroidTest : FileTestBase
     {
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), DefaultPixelType)]
+        [WithTestPatternImages(100, 100, DefaultPixelType)]
         public void ImageShouldApplyPolaroidFilter<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : struct, IPixel<TPixel>
         {
@@ -24,14 +24,14 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
         }
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), DefaultPixelType)]
+        [WithTestPatternImages(100, 100, DefaultPixelType)]
         public void ImageShouldApplyPolaroidFilterInBox<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : struct, IPixel<TPixel>
         {
             using (Image<TPixel> source = provider.GetImage())
-            using (var image = source.Clone())
+            using (Image<TPixel> image = source.Clone())
             {
-                var bounds = new Rectangle(10, 10, image.Width / 2, image.Height / 2);
+                var bounds = new Rectangle(image.Width / 4, image.Height / 4, image.Width / 2, image.Height / 2);
 
                 image.Mutate(x => x.Polaroid(bounds));
                 image.DebugSave(provider);
diff --git a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/SaturateTest.cs b/tests/ImageSharp.Tests/Processing/Processors/Filters/SaturateTest.cs
similarity index 82%
rename from tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/SaturateTest.cs
rename to tests/ImageSharp.Tests/Processing/Processors/Filters/SaturateTest.cs
index b9e2c3f0f7..8553cad4c2 100644
--- a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/SaturateTest.cs
+++ b/tests/ImageSharp.Tests/Processing/Processors/Filters/SaturateTest.cs
@@ -14,12 +14,12 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
         public static readonly TheoryData<float> SaturationValues
         = new TheoryData<float>
         {
-            .5f,
+            .5F,
            1.5F,
         };
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), nameof(SaturationValues), DefaultPixelType)]
+        [WithTestPatternImages(nameof(SaturationValues), 100, 100, DefaultPixelType)]
         public void ImageShouldApplySaturationFilter<TPixel>(TestImageProvider<TPixel> provider, float value)
             where TPixel : struct, IPixel<TPixel>
         {
@@ -31,14 +31,14 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
         }
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), nameof(SaturationValues), DefaultPixelType)]
+        [WithTestPatternImages(nameof(SaturationValues), 100, 100, DefaultPixelType)]
         public void ImageShouldApplySaturationFilterInBox<TPixel>(TestImageProvider<TPixel> provider, float value)
             where TPixel : struct, IPixel<TPixel>
         {
             using (Image<TPixel> source = provider.GetImage())
             using (Image<TPixel> image = source.Clone())
             {
-                var bounds = new Rectangle(10, 10, image.Width / 2, image.Height / 2);
+                var bounds = new Rectangle(image.Width / 4, image.Height / 4, image.Width / 2, image.Height / 2);
 
                 image.Mutate(x => x.Saturate(value, bounds));
                 image.DebugSave(provider, value);
diff --git a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/SepiaTest.cs b/tests/ImageSharp.Tests/Processing/Processors/Filters/SepiaTest.cs
similarity index 80%
rename from tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/SepiaTest.cs
rename to tests/ImageSharp.Tests/Processing/Processors/Filters/SepiaTest.cs
index 71a35a773d..499567ae88 100644
--- a/tests/ImageSharp.Tests/Processing/Processors/ColorMatrix/SepiaTest.cs
+++ b/tests/ImageSharp.Tests/Processing/Processors/Filters/SepiaTest.cs
@@ -12,7 +12,7 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
     public class SepiaTest : FileTestBase
     {
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), DefaultPixelType)]
+        [WithTestPatternImages(100, 100, DefaultPixelType)]
         public void ImageShouldApplySepiaFilter<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : struct, IPixel<TPixel>
         {
@@ -24,14 +24,14 @@ namespace SixLabors.ImageSharp.Tests.Processing.Processors.Filters
         }
 
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), DefaultPixelType)]
+        [WithTestPatternImages(100, 100, DefaultPixelType)]
         public void ImageShouldApplySepiaFilterInBox<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : struct, IPixel<TPixel>
         {
             using (Image<TPixel> source = provider.GetImage())
-            using (var image = source.Clone())
+            using (Image<TPixel> image = source.Clone())
             {
-                var bounds = new Rectangle(10, 10, image.Width / 2, image.Height / 2);
+                var bounds = new Rectangle(image.Width / 4, image.Height / 4, image.Width / 2, image.Height / 2);
 
                 image.Mutate(x => x.Sepia(bounds));
                 image.DebugSave(provider);