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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.
*
*=========================================================================*/
#include "itkTileImageFilter.h"
#include "itkImageFileReader.h"
#include "itkImageSeriesWriter.h"
int itkPushPopTileImageFilterTest(int argc, char *argv[] )
{
typedef itk::RGBPixel<unsigned char> PixelType;
enum { InputImageDimension = 2 };
enum { OutputImageDimension = 2 };
typedef itk::Image<PixelType,InputImageDimension> InputImageType;
typedef itk::Image<PixelType,OutputImageDimension> OutputImageType;
typedef itk::ImageFileReader< InputImageType > ImageReaderType;
typedef itk::TileImageFilter<InputImageType,OutputImageType> TilerType;
typedef itk::ImageFileWriter<OutputImageType> WriterType;
if (argc != 6)
{
std::cerr << "Usage: " << std::endl;
std::cerr << argv[0] << " input1 input2 input3 input4 output" << std::endl;
return EXIT_FAILURE;
}
itk::FixedArray<unsigned int,2> layout;
layout[0] = 4;
layout[1] = 1;
// Tile the input images
TilerType::Pointer tiler1 = TilerType::New();
TilerType::Pointer tiler2 = TilerType::New();
TilerType::Pointer tiler3 = TilerType::New();
TilerType::Pointer tiler4 = TilerType::New();
TilerType::Pointer tiler = TilerType::New();
unsigned char yellow[3] = {255, 255, 127};
itk::RGBPixel<unsigned char> fillPixel = yellow;
tiler1->SetDefaultPixelValue(fillPixel);
tiler1->SetLayout(layout);
tiler2->SetDefaultPixelValue(fillPixel);
tiler2->SetLayout(layout);
tiler3->SetDefaultPixelValue(fillPixel);
tiler3->SetLayout(layout);
tiler4->SetDefaultPixelValue(fillPixel);
tiler4->SetLayout(layout);
int f = 0;
for (int i=1; i < argc - 1; i++)
{
ImageReaderType::Pointer reader = ImageReaderType::New();
reader->SetFileName (argv[i]);
reader->Update();
tiler1->SetInput(f,reader->GetOutput());
tiler2->SetInput(f,reader->GetOutput());
tiler3->SetInput(f,reader->GetOutput());
tiler4->SetInput(f++,reader->GetOutput());
}
InputImageType::ConstPointer image;
tiler3->PopBackInput();
image = tiler4->GetInput();
tiler4->PopFrontInput();
tiler4->PushBackInput(image);
image = tiler2->GetInput(3);
tiler2->PopBackInput();
tiler2->PushFrontInput(image);
layout[0] = 1;
layout[1] = 4;
tiler->SetDefaultPixelValue(fillPixel);
tiler->SetLayout(layout);
tiler->PushBackInput(tiler1->GetOutput());
tiler->PushBackInput(tiler2->GetOutput());
tiler->PushBackInput(tiler3->GetOutput());
tiler->PushBackInput(tiler4->GetOutput());
WriterType::Pointer writer = WriterType::New();
writer->SetFileName( argv[argc-1] );
try
{
writer->SetInput(tiler->GetOutput());
writer->Update();
}
catch( itk::ExceptionObject & excp )
{
std::cerr << "Error while writing file." << std::endl;
std::cerr << excp << std::endl;
return EXIT_FAILURE;
}
std::cout << "Test passed." << std::endl;
return EXIT_SUCCESS;
}
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