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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 "itkBMPImageIO.h"
#include "itkImageFileReader.h"
#include "itkImageRegionConstIterator.h"
#include "itkTestingMacros.h"
#include <fstream>
#define SPECIFIC_IMAGEIO_MODULE_TEST
/* This test checks that a lower-left bitmap and an upper-left bitmap
* representing the same grayscale image contains the same data.
*/
int itkBMPImageIOTest3( int argc, char* argv[] )
{
if( argc < 3 )
{
std::cerr << "Usage: " << argv[0] << " lowerLeftImage upperLeftImage" << std::endl;
return EXIT_FAILURE;
}
const unsigned int Dimension = 2;
typedef unsigned char PixelType;
typedef itk::Image< PixelType, Dimension > ImageType;
typedef itk::ImageFileReader< ImageType > ReaderType;
typedef itk::ImageRegionConstIterator< ImageType > IteratorType;
ReaderType::Pointer lowerLeftImageReader = ReaderType::New();
itk::BMPImageIO::Pointer lowerLeftImageIO = itk::BMPImageIO::New();
EXERCISE_BASIC_OBJECT_METHODS( lowerLeftImageIO, BMPImageIO, ImageIOBase );
lowerLeftImageReader->SetImageIO( lowerLeftImageIO );
lowerLeftImageReader->SetFileName( argv[1] );
ReaderType::Pointer upperLeftImageReader = ReaderType::New();
itk::BMPImageIO::Pointer upperLeftImageIO = itk::BMPImageIO::New();
EXERCISE_BASIC_OBJECT_METHODS( lowerLeftImageIO, BMPImageIO, ImageIOBase );
upperLeftImageReader->SetImageIO( upperLeftImageIO );
upperLeftImageReader->SetFileName( argv[2] );
TRY_EXPECT_NO_EXCEPTION( lowerLeftImageReader->Update() );
TRY_EXPECT_NO_EXCEPTION( upperLeftImageReader->Update() );
if( !lowerLeftImageIO->GetFileLowerLeft() )
{
std::cout << "Test failed!" << std::endl;
std::cout << "Expecting a lower-left bitmap, got an upper-left."
<< std::endl;
return EXIT_FAILURE;
}
if( upperLeftImageIO->GetFileLowerLeft() )
{
std::cout << "Test failed!" << std::endl;
std::cout << "Expecting an upper-left bitmap, got a lower-left."
<< std::endl;
return EXIT_FAILURE;
}
ImageType::RegionType loweLeftImageRegion =
lowerLeftImageReader->GetOutput()->GetLargestPossibleRegion();
ImageType::RegionType upperLeftImageRegion =
upperLeftImageReader->GetOutput()->GetLargestPossibleRegion();
if( loweLeftImageRegion != upperLeftImageRegion )
{
std::cout << "Test failed!" << std::endl;
std::cout << "The images must have the same size." << std::endl;
return EXIT_FAILURE;
}
IteratorType it1( lowerLeftImageReader->GetOutput(), loweLeftImageRegion );
IteratorType it2( upperLeftImageReader->GetOutput(), upperLeftImageRegion );
it1.GoToBegin();
it2.GoToBegin();
while( !it1.IsAtEnd() )
{
if( it1.Value() != it2.Value() )
{
std::cout << "Test failed!" << std::endl;
std::cout << "An image stored in a lower-left bitmap is different than \
the same image stored in a upper-left bitmap." << std::endl;
return EXIT_FAILURE;
}
++it1;
++it2;
}
std::cout << "Test finished" << std::endl;
return EXIT_SUCCESS;
}
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