//affine

//ImageTypes
(FixedInternalImagePixelType "float")
(FixedImageDimension 2)
(MovingInternalImagePixelType "float")
(MovingImageDimension 2)

//Components
(Registration "MultiResolutionRegistration")
(FixedImagePyramid "FixedSmoothingImagePyramid")
(MovingImagePyramid "MovingSmoothingImagePyramid")
(Interpolator "BSplineInterpolator")
(Metric "AdvancedMattesMutualInformation")
(Optimizer "AdaptiveStochasticGradientDescent")
(ResampleInterpolator "FinalBSplineInterpolator")
(Resampler "DefaultResampler")
(Transform "AffineTransform")

(AutomaticScalesEstimation "true")

(ResultImagePixelType "short")

(ErodeMask "false" "false" "false")

(HowToCombineTransforms "Compose")

(FixedKernelBSplineOrder 1 1 1)
(MovingKernelBSplineOrder 3 3 3)


(AutomaticTransformInitialization "false")

(NumberOfResolutions 3)

(WriteTransformParametersEachIteration "false")

(NewSamplesEveryIteration "true")
(ShowExactMetricValue "false")
(ImageSampler "RandomCoordinate")
(FixedImageBSplineInterpolationOrder 1)
(UseRandomSampleRegion "false" )
(SampleRegionSize 70.0)

//Maximum number of iterations in each resolution level:
(MaximumNumberOfIterations 500)

//Number of grey level bins in each resolution level:
(NumberOfFixedHistogramBins 32)
(NumberOfMovingHistogramBins 32 )

//Number of spatial samples used to compute the mutual information in each resolution level:
(NumberOfSpatialSamples 2000 2000 2000)

//Order of B-Spline interpolation used in each resolution level:
(BSplineInterpolationOrder 1 1 1)

//Order of B-Spline interpolation used for applying the final deformation:
(FinalBSplineInterpolationOrder 3)

//Default pixel value for pixels that come from outside the picture:
(DefaultPixelValue 0)

(UseCruzAcceleration "true" )
(AutomaticParameterEstimation "true")
(MaximumStepLength 1.0 1.0 1.0 )

//SP: Param_A in each resolution level. a_k = a/(A+k+1)^alpha
(SP_A 20.0)

//SP: Param_alpha in each resolution level. a_k = a/(A+k+1)^alpha
(SP_alpha 1.0)

(FiniteDifferenceDerivative "false")



