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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkMinimumMaximumImageCalculator_h
#define itkMinimumMaximumImageCalculator_h
#include "itkObject.h"
#include "itkObjectFactory.h"
namespace itk
{
/** \class MinimumMaximumImageCalculator
* \brief Computes the minimum and the maximum intensity values of
* an image.
*
* This calculator computes the minimum and the maximum intensity values of
* an image. It is templated over input image type. If only Maximum or
* Minimum value is needed, just call ComputeMaximum() (ComputeMinimum())
* otherwise Compute() will compute both.
*
* \ingroup Operators
* \ingroup ITKCommon
*
* \wiki
* \wikiexample{ImageProcessing/MinimumMaximumImageCalculator,Find the minimum and maximum value (and the position of the value) in an image}
* \wikiexample{Developer/OilPaintingImageFilter,Multi-threaded oil painting image filter}
* \endwiki
*/
template< typename TInputImage >
class ITK_TEMPLATE_EXPORT MinimumMaximumImageCalculator:public Object
{
public:
/** Standard class typedefs. */
typedef MinimumMaximumImageCalculator Self;
typedef Object Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(MinimumMaximumImageCalculator, Object);
/** Type definition for the input image. */
typedef TInputImage ImageType;
/** Pointer type for the image. */
typedef typename TInputImage::Pointer ImagePointer;
/** Const Pointer type for the image. */
typedef typename TInputImage::ConstPointer ImageConstPointer;
/** Type definition for the input image pixel type. */
typedef typename TInputImage::PixelType PixelType;
/** Type definition for the input image index type. */
typedef typename TInputImage::IndexType IndexType;
/** Type definition for the input image region type. */
typedef typename TInputImage::RegionType RegionType;
/** Set the input image. */
itkSetConstObjectMacro(Image, ImageType);
/** Compute the minimum value of intensity of the input image. */
void ComputeMinimum();
/** Compute the maximum value of intensity of the input image. */
void ComputeMaximum();
/** Compute the minimum and maximum values of intensity of the input image. */
void Compute();
/** Return the minimum intensity value. */
itkGetConstMacro(Minimum, PixelType);
/** Return the maximum intensity value. */
itkGetConstMacro(Maximum, PixelType);
/** Return the index of the minimum intensity value. */
itkGetConstReferenceMacro(IndexOfMinimum, IndexType);
/** Return the index of the maximum intensity value. */
itkGetConstReferenceMacro(IndexOfMaximum, IndexType);
/** Set the region over which the values will be computed */
void SetRegion(const RegionType & region);
protected:
MinimumMaximumImageCalculator();
virtual ~MinimumMaximumImageCalculator() ITK_OVERRIDE {}
virtual void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(MinimumMaximumImageCalculator);
PixelType m_Minimum;
PixelType m_Maximum;
ImageConstPointer m_Image;
IndexType m_IndexOfMinimum;
IndexType m_IndexOfMaximum;
RegionType m_Region;
bool m_RegionSetByUser;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkMinimumMaximumImageCalculator.hxx"
#endif
#endif /* itkMinimumMaximumImageCalculator_h */
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