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/*
* Copyright (C) 2005-2020 Centre National d'Etudes Spatiales (CNES)
*
* This file is part of Orfeo Toolbox
*
* https://www.orfeo-toolbox.org/
*
* 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
*
* 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 otbCLHistogramEqualizationFilter_hxx
#define otbCLHistogramEqualizationFilter_hxx
#include "otbCLHistogramEqualizationFilter.h"
#include "itkImageRegionIterator.h"
#include <limits>
namespace otb
{
template <class TInputImage, class TOutputImage>
CLHistogramEqualizationFilter<TInputImage, TOutputImage>::CLHistogramEqualizationFilter()
: m_HistoFilter(HistoFilter::New()),
m_GainLutFilter(GainLutFilter::New()),
m_ApplyGainFilter(ApplyGainFilter::New()),
m_StreamingImageFilter(StreamingImageFilter::New()),
m_BufferFilter(BufferFilter::New())
{
m_Min = std::numeric_limits<InputPixelType>::quiet_NaN();
m_Max = std::numeric_limits<InputPixelType>::quiet_NaN();
m_NbBin = 256;
m_Threshold = -1;
m_NoDataFlag = false;
m_NoData = std::numeric_limits<InputPixelType>::quiet_NaN();
m_ThumbSize.Fill(0);
m_GainLutFilter->SetInput(m_HistoFilter->GetHistoOutput());
m_StreamingImageFilter->SetInput(m_GainLutFilter->GetOutput());
m_ApplyGainFilter->SetInputLut(m_StreamingImageFilter->GetOutput());
m_ApplyGainFilter->SetInputImage(m_BufferFilter->GetOutput());
}
template <class TInputImage, class TOutputImage>
void CLHistogramEqualizationFilter<TInputImage, TOutputImage>::UpdateOutputInformation()
{
const InputImageType* input = this->GetInput();
m_HistoFilter->SetInput(input);
m_BufferFilter->SetInput(input);
m_ApplyGainFilter->GetOutput()->UpdateOutputInformation();
this->GetOutput()->CopyInformation(m_ApplyGainFilter->GetOutput());
}
template <class TInputImage, class TOutputImage>
void CLHistogramEqualizationFilter<TInputImage, TOutputImage>::PropagateRequestedRegion(itk::DataObject* output)
{
m_ApplyGainFilter->GetOutput()->SetRequestedRegion(static_cast<OutputImageType*>(output)->GetRequestedRegion());
m_ApplyGainFilter->GetOutput()->PropagateRequestedRegion();
}
template <class TInputImage, class TOutputImage>
void CLHistogramEqualizationFilter<TInputImage, TOutputImage>::GenerateData()
{
m_ApplyGainFilter->GraftOutput(this->GetOutput());
m_ApplyGainFilter->Update();
this->GraftOutput(m_ApplyGainFilter->GetOutput());
}
/**
* Standard "PrintSelf" method
*/
template <class TInputImage, class TOutputImage>
void CLHistogramEqualizationFilter<TInputImage, TOutputImage>::PrintSelf(std::ostream& os, itk::Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "Minimum : " << m_Min << std::endl;
os << indent << "Maximum : " << m_Max << std::endl;
os << indent << "Bin Number : " << m_NbBin << std::endl;
os << indent << "Thumbnail size : " << m_ThumbSize << std::endl;
os << indent << "Threshold value : " << m_Threshold << std::endl;
os << indent << "Is no data activated : " << m_NoDataFlag << std::endl;
os << indent << "No Data : " << m_NoData << std::endl;
}
} // End namespace otb
#endif
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