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diff --git a/dmagick/c/statistic.d b/dmagick/c/statistic.d
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+module dmagick.c.statistic;
+
+import dmagick.c.exception;
+import dmagick.c.image;
+import dmagick.c.magickType;
+
+extern(C)
+{
+	struct ChannelStatistics
+	{
+		size_t
+			depth;
+
+		double
+			minima,
+			maxima,
+			sum,
+			sum_squared,
+			sum_cubed,
+			sum_fourth_power,
+			mean,
+			variance,
+			standard_deviation,
+			kurtosis,
+			skewness;
+	}
+
+	enum MagickEvaluateOperator
+	{
+		UndefinedEvaluateOperator,
+		AddEvaluateOperator,
+		AndEvaluateOperator,
+		DivideEvaluateOperator,
+		LeftShiftEvaluateOperator,
+		MaxEvaluateOperator,
+		MinEvaluateOperator,
+		MultiplyEvaluateOperator,
+		OrEvaluateOperator,
+		RightShiftEvaluateOperator,
+		SetEvaluateOperator,
+		SubtractEvaluateOperator,
+		XorEvaluateOperator,
+		PowEvaluateOperator,
+		LogEvaluateOperator,
+		ThresholdEvaluateOperator,
+		ThresholdBlackEvaluateOperator,
+		ThresholdWhiteEvaluateOperator,
+		GaussianNoiseEvaluateOperator,
+		ImpulseNoiseEvaluateOperator,
+		LaplacianNoiseEvaluateOperator,
+		MultiplicativeNoiseEvaluateOperator,
+		PoissonNoiseEvaluateOperator,
+		UniformNoiseEvaluateOperator,
+		CosineEvaluateOperator,
+		SineEvaluateOperator,
+		AddModulusEvaluateOperator,
+		MeanEvaluateOperator,
+		AbsEvaluateOperator
+	}
+
+	enum MagickFunction
+	{
+		UndefinedFunction,
+		PolynomialFunction,
+		SinusoidFunction,
+		ArcsinFunction,
+		ArctanFunction
+	}
+
+	ChannelStatistics* GetImageChannelStatistics(const Image*, ExceptionInfo*);
+
+	Image* EvaluateImages(const Image*, const MagickEvaluateOperator, ExceptionInfo*);
+
+	MagickBooleanType EvaluateImage(Image*, const MagickEvaluateOperator, const double, ExceptionInfo*);
+	MagickBooleanType EvaluateImageChannel(Image*, const ChannelType, const MagickEvaluateOperator, const double, ExceptionInfo*);
+	MagickBooleanType FunctionImage(Image*, const MagickFunction, const size_t, const double*, ExceptionInfo*);
+	MagickBooleanType FunctionImageChannel(Image*, const ChannelType, const MagickFunction, const size_t, const double*, ExceptionInfo*);
+	MagickBooleanType GetImageChannelExtrema(const Image*, const ChannelType, size_t*, size_t*, ExceptionInfo*);
+	MagickBooleanType GetImageChannelMean(const Image*, const ChannelType, double*, double*, ExceptionInfo*);
+	MagickBooleanType GetImageChannelKurtosis(const Image*, const ChannelType, double*, double*, ExceptionInfo*);
+	MagickBooleanType GetImageChannelRange(const Image*, const ChannelType, double*, double*, ExceptionInfo*);
+	MagickBooleanType GetImageExtrema(const Image*, size_t*, size_t*, ExceptionInfo*);
+	MagickBooleanType GetImageRange(const Image*, double*, double*, ExceptionInfo*);
+	MagickBooleanType GetImageMean(const Image*, double*, double*, ExceptionInfo*);
+	MagickBooleanType GetImageKurtosis(const Image*, double*, double*, ExceptionInfo*);
+}