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/*=========================================================================
Program: ORFEO Toolbox
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
See OTBCopyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "otbWrapperApplication.h"
#include "otbWrapperApplicationFactory.h"
#include "otbBandMathImageFilter.h"
#include "otbMultiToMonoChannelExtractROI.h"
#include "otbObjectList.h"
namespace otb
{
namespace Wrapper
{
class BandMath : public Application
{
public:
/** Standard class typedefs. */
typedef BandMath Self;
typedef Application Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
/** Standard macro */
itkNewMacro(Self);
itkTypeMacro(BandMath, otb::Application);
typedef otb::MultiToMonoChannelExtractROI<FloatVectorImageType::InternalPixelType,
FloatImageType::PixelType> ExtractROIFilterType;
typedef otb::ObjectList<ExtractROIFilterType> ExtractROIFilterListType;
typedef otb::BandMathImageFilter<FloatImageType> BandMathImageFilterType;
private:
void DoInit() ITK_OVERRIDE
{
SetName("BandMath");
SetDescription("Perform a mathematical operation on monoband images");
SetDocName("Band Math");
SetDocLongDescription("This application performs a mathematical operation on monoband images."
"Mathematical formula interpretation is done via MuParser libraries.\n"
"For MuParser version superior to 2.0 uses '&&' and '||' logical operators, and ternary operator 'boolean_expression ? if_true : if_false'\n"
"For older version of MuParser (prior to v2) use 'and' and 'or' logical operators, and ternary operator 'if(; ; )'.\n"
"The list of features and operators is available on MuParser website: http://muparser.sourceforge.net/\n"
);
SetDocLimitations("None");
SetDocAuthors("OTB-Team");
SetDocSeeAlso(" ");
AddDocTag("Util");
AddParameter(ParameterType_InputImageList, "il", "Input image list");
SetParameterDescription("il", "Image list to perform computation on.");
AddParameter(ParameterType_OutputImage, "out", "Output Image");
SetParameterDescription("out","Output image.");
AddRAMParameter();
AddParameter(ParameterType_String, "exp", "Expression");
SetParameterDescription("exp",
"The mathematical expression to apply. \nUse im1b1 for the first band, im1b2 for the second one...");
// Doc example parameter settings
SetDocExampleParameterValue("il", "verySmallFSATSW_r.tif verySmallFSATSW_nir.tif verySmallFSATSW.tif");
SetDocExampleParameterValue("out", "apTvUtBandMathOutput.tif");
SetDocExampleParameterValue("exp", "\"cos(im1b1) > cos(im2b1) ? im3b1 : im3b2 \"");
}
void DoUpdateParameters() ITK_OVERRIDE
{
// Check if the expression is correctly set
if (HasValue("il"))
{
LiveCheck();
}
}
void LiveCheck()
{
// Initialize a bandMath Filter first
m_ChannelExtractorList = ExtractROIFilterListType::New();
m_Filter = BandMathImageFilterType::New();
FloatVectorImageListType::Pointer inList = GetParameterImageList("il");
unsigned int nbInputs = inList->Size();
unsigned int imageId = 0, bandId = 0;
for (unsigned int i = 0; i < nbInputs; i++)
{
FloatVectorImageType::Pointer currentImage = inList->GetNthElement(i);
currentImage->UpdateOutputInformation();
for (unsigned int j = 0; j < currentImage->GetNumberOfComponentsPerPixel(); j++)
{
std::ostringstream tmpParserVarName;
tmpParserVarName << "im" << imageId + 1 << "b" << j + 1;
m_ExtractROIFilter = ExtractROIFilterType::New();
m_ExtractROIFilter->SetInput(currentImage);
m_ExtractROIFilter->SetChannel(j + 1);
m_ExtractROIFilter->GetOutput()->UpdateOutputInformation();
m_ChannelExtractorList->PushBack(m_ExtractROIFilter);
m_Filter->SetNthInput(bandId, m_ChannelExtractorList->Back()->GetOutput(), tmpParserVarName.str());
bandId++;
}
imageId++;
}
otb::Parser::Pointer dummyParser = otb::Parser::New();
std::vector<double> dummyVars;
std::string success = "The expression is Valid";
SetParameterDescription("exp", success);
std::ostringstream failure;
if (HasValue("exp"))
{
// Setup the dummy parser
for (unsigned int i = 0; i < bandId; i++)
{
dummyVars.push_back(1.);
dummyParser->DefineVar(m_Filter->GetNthInputName(i), &(dummyVars.at(i)));
}
dummyParser->SetExpr(GetParameterString("exp"));
// Check the expression
try
{
dummyParser->Eval();
}
catch(itk::ExceptionObject& err)
{
// Change the parameter description to be able to have the
// parser errors in the tooltip
SetParameterDescription("exp", err.GetDescription());
}
}
}
void DoExecute() ITK_OVERRIDE
{
// Get the input image list
FloatVectorImageListType::Pointer inList = GetParameterImageList("il");
// checking the input images list validity
const unsigned int nbImages = inList->Size();
if (nbImages == 0)
{
itkExceptionMacro("No input Image set...; please set at least one input image");
}
m_ChannelExtractorList = ExtractROIFilterListType::New();
m_Filter = BandMathImageFilterType::New();
unsigned int bandId = 0;
unsigned int imageId = 0;
for (unsigned int i = 0; i < nbImages; i++)
{
FloatVectorImageType::Pointer currentImage = inList->GetNthElement(i);
currentImage->UpdateOutputInformation();
otbAppLogINFO( << "Image #" << i + 1 << " has "
<< currentImage->GetNumberOfComponentsPerPixel()
<< " components" << std::endl );
for (unsigned int j = 0; j < currentImage->GetNumberOfComponentsPerPixel(); j++)
{
std::ostringstream tmpParserVarName;
tmpParserVarName << "im" << imageId + 1 << "b" << j + 1;
m_ExtractROIFilter = ExtractROIFilterType::New();
m_ExtractROIFilter->SetInput(currentImage);
m_ExtractROIFilter->SetChannel(j + 1);
m_ExtractROIFilter->GetOutput()->UpdateOutputInformation();
m_ChannelExtractorList->PushBack(m_ExtractROIFilter);
m_Filter->SetNthInput(bandId, m_ChannelExtractorList->Back()->GetOutput(), tmpParserVarName.str());
bandId++;
}
imageId++;
}
m_Filter->SetExpression(GetParameterString("exp"));
// Set the output image
SetParameterOutputImage("out", m_Filter->GetOutput());
}
ExtractROIFilterType::Pointer m_ExtractROIFilter;
ExtractROIFilterListType::Pointer m_ChannelExtractorList;
BandMathImageFilterType::Pointer m_Filter;
};
} // namespace Wrapper
} // namespace otb
OTB_APPLICATION_EXPORT(otb::Wrapper::BandMath)
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