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#include "ITKWrap.hpp"
#include <itkCannyEdgeDetectionImageFilter.h>
template <int dims, DataClass dataclass, class PixelClass>
static Array CannyEdgeDetectorFilter(const ArrayVector & arg)
{
if (arg.size() < 4) throw Exception("Canny edge detector filter require 4 arguments: image, variance, maxerror, threshold (outsidevalue is optional)");
double variance = arg[1].asDouble();
double maxerror = arg[2].asDouble();
double threshold = arg[3].asDouble();
double outsidevalue = 0;
if (arg.size() > 4) outsidevalue = arg[4].asDouble();
typedef itk::Image<PixelClass, dims> ITKType;
typename ITKType::Pointer imageIn = CreateITKFromArray<dims,dataclass,PixelClass>(arg[0]);
typedef itk::CannyEdgeDetectionImageFilter<ITKType, ITKType> FilterType;
typename FilterType::Pointer filter = FilterType::New();
filter->SetVariance(variance);
filter->SetMaximumError(maxerror);
filter->SetUpperThreshold(threshold);
filter->SetOutsideValue(outsidevalue);
filter->SetInput(imageIn);
filter->Update();
return CreateArrayFromITK<dims,dataclass,PixelClass>(filter->GetOutput());
}
//@@Signature
//gfunction cannyedgedetector CannyEdgeDetectorFunction
//input x variance maxerror threshold outsidevalue
//output y
ArrayVector CannyEdgeDetectorFunction(int nargout, const ArrayVector& arg)
{
ITKCasesFloatOnly(CannyEdgeDetectorFilter,arg);
}
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