1 files changed, 31 insertions, 0 deletions
diff --git a/dmagick/c/compare.d b/dmagick/c/compare.d
new file mode 100644
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+++ b/dmagick/c/compare.d
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+module dmagick.c.compare;
+
+import dmagick.c.exception;
+import dmagick.c.geometry;
+import dmagick.c.image;
+import dmagick.c.magickType;
+
+extern(C)
+{
+	enum MetricType
+	{
+		UndefinedMetric,
+		AbsoluteErrorMetric,
+		MeanAbsoluteErrorMetric,
+		MeanErrorPerPixelMetric,
+		MeanSquaredErrorMetric,
+		PeakAbsoluteErrorMetric,
+		PeakSignalToNoiseRatioMetric,
+		RootMeanSquaredErrorMetric
+	}
+
+	double* GetImageChannelDistortions(Image*, const Image*, const MetricType, ExceptionInfo*);
+
+	Image* CompareImageChannels(Image*, const Image*, const ChannelType, const MetricType, double*, ExceptionInfo*);
+	Image* CompareImages(Image*, const Image*, const MetricType, double*, ExceptionInfo*);
+	Image* SimilarityImage(Image*, const Image*, RectangleInfo*, double*, ExceptionInfo*);
+
+	MagickBooleanType GetImageChannelDistortion(Image*, const Image*, const ChannelType, const MetricType, double*, ExceptionInfo*);
+	MagickBooleanType GetImageDistortion(Image*, const Image*, const MetricType, double*, ExceptionInfo*);
+	MagickBooleanType IsImagesEqual(Image*, const Image*);
+}