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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 "itkBinShrinkImageFilter.h"
#include "itkShrinkImageFilter.h"
#include "itkPipelineMonitorImageFilter.h"
#include "itkImageRegionIteratorWithIndex.h"
#include "itkImageRegionConstIteratorWithIndex.h"
#include "itkTestingMacros.h"
int itkBinShrinkImageFilterTest1( int , char *[] )
{
// typedefs to simplify the syntax
typedef itk::Image< int, 2 > InputImageType;
typedef itk::Image< long int, 2 > OutputImageType;
InputImageType::Pointer sourceImage = InputImageType::New();
// fill in an image
InputImageType::IndexType index = {{100, 100}};
InputImageType::SizeType size = {{12, 20}};
InputImageType::RegionType region;
region.SetSize( size );
region.SetIndex( index );
sourceImage->SetRegions( region );
sourceImage->Allocate();
{
itk::ImageRegionIteratorWithIndex<InputImageType> outIt(sourceImage, region);
for ( outIt.GoToBegin(); !outIt.IsAtEnd(); ++outIt )
{
// we multiply by ten so for more precision
outIt.Set( outIt.GetIndex()[0]*10 );
}
}
// assemple pipeline
typedef itk::PipelineMonitorImageFilter<InputImageType>
InputMonitorFilterType;
InputMonitorFilterType::Pointer monitor1 = InputMonitorFilterType::New();
monitor1->SetInput( sourceImage );
typedef itk::BinShrinkImageFilter< InputImageType, OutputImageType >
BinShrinkFilterType;
BinShrinkFilterType::Pointer bin = BinShrinkFilterType::New();
// Exercise some methods for coverage
EXERCISE_BASIC_OBJECT_METHODS( bin, BinShrinkImageFilter,
ImageToImageFilter );
bin->SetInput( monitor1->GetOutput() );
itk::ModifiedTimeType t = bin->GetMTime();
std::cout << bin;
TEST_EXPECT_EQUAL(bin->GetShrinkFactors()[0], 1 );
// test no change
bin->SetShrinkFactors(1);
TEST_EXPECT_EQUAL(bin->GetShrinkFactors()[0], 1 );
TEST_EXPECT_EQUAL(t, bin->GetMTime());
// test zero value
bin->SetShrinkFactors(0);
TEST_EXPECT_EQUAL(bin->GetShrinkFactors()[0], 1 );
TEST_EXPECT_TRUE( t != bin->GetMTime() );
t = bin->GetMTime();
// no change
bin->SetShrinkFactor(0,1);
TEST_EXPECT_EQUAL(bin->GetShrinkFactors()[0], 1 );
TEST_EXPECT_EQUAL(t, bin->GetMTime());
bin->SetShrinkFactor(0,2);
TEST_EXPECT_EQUAL(bin->GetShrinkFactors()[0], 2 );
TEST_EXPECT_TRUE( t != bin->GetMTime() );
typedef itk::PipelineMonitorImageFilter<OutputImageType> OutputMonitorFilterType;
OutputMonitorFilterType::Pointer monitor2 = OutputMonitorFilterType::New();
monitor2->SetInput(bin->GetOutput());
bool failed = false;
try
{
// update with 1,1 shrink factor
unsigned int factors[2] = { 1, 1 };
std::cout << "== Testing with shrink factors " << factors[0] << " " << factors[1] << " == " << std::endl;
bin->SetShrinkFactors(factors);
monitor2->Update();
// check values
itk::ImageRegionConstIteratorWithIndex<OutputImageType> inIt( monitor2->GetOutput(),
monitor2->GetOutput()->GetLargestPossibleRegion() );
for (inIt.GoToBegin(); !inIt.IsAtEnd(); ++inIt)
{
if (inIt.Get() != inIt.GetIndex()[0]*10)
{
std::cout << "Wrong pixel value at " << inIt.GetIndex() << " of " << inIt.Get() << std::endl;
failed = true;
}
}
}
catch (itk::ExceptionObject &e)
{
std::cout << "Exception: " << e << std::endl;
failed = true;
}
try
{
// update with 2,1 shrink factor
unsigned int factors[2] = { 2, 1 };
std::cout << "== Testing with shrink factors " << factors[0] << " " << factors[1] << " == " << std::endl;
bin->SetShrinkFactors(factors);
monitor2->UpdateLargestPossibleRegion();
// check values
itk::ImageRegionConstIteratorWithIndex<OutputImageType> inIt( monitor2->GetOutput(),
monitor2->GetOutput()->GetLargestPossibleRegion() );
for (inIt.GoToBegin(); !inIt.IsAtEnd(); ++inIt)
{
if (inIt.Get() != static_cast< int >( inIt.GetIndex()[0]*factors[0] )*10 + 5 )
{
std::cout << "Wrong pixel value at " << inIt.GetIndex() << " of " << inIt.Get() << std::endl;
failed = true;
}
}
}
catch (itk::ExceptionObject &e)
{
std::cout << "Exception: " << e << std::endl;
failed = true;
}
try
{
// update with 2,2 shrink factor
unsigned int factors[2] = { 2, 2 };
std::cout << "== Testing with shrink factors " << factors[0] << " " << factors[1] << " == " << std::endl;
bin->SetShrinkFactors(factors);
monitor2->UpdateLargestPossibleRegion();
// check values
itk::ImageRegionConstIteratorWithIndex<OutputImageType> inIt( monitor2->GetOutput(),
monitor2->GetOutput()->GetLargestPossibleRegion() );
for (inIt.GoToBegin(); !inIt.IsAtEnd(); ++inIt)
{
if (inIt.Get() != static_cast< int >( inIt.GetIndex()[0]*factors[0] )*10 + 5 )
{
std::cout << "Wrong pixel value at " << inIt.GetIndex() << " of " << inIt.Get() << std::endl;
failed = true;
}
}
}
catch (itk::ExceptionObject &e)
{
std::cout << "Exception: " << e << std::endl;
failed = true;
}
try
{
// update with 5,2 shrink factor
unsigned int factors[2] = { 5, 2 };
std::cout << "== Testing with shrink factors " << factors[0] << " " << factors[1] << " == " << std::endl;
bin->SetShrinkFactors(factors);
monitor2->UpdateLargestPossibleRegion();
// check values
itk::ImageRegionConstIteratorWithIndex<OutputImageType> inIt( monitor2->GetOutput(),
monitor2->GetOutput()->GetLargestPossibleRegion() );
for (inIt.GoToBegin(); !inIt.IsAtEnd(); ++inIt)
{
if (inIt.Get() != static_cast< int >( inIt.GetIndex()[0]*factors[0]+2)*10 )
{
std::cout << "Wrong pixel value at " << inIt.GetIndex() << " of " << inIt.Get() << std::endl;
failed = true;
}
}
}
catch (itk::ExceptionObject &e)
{
std::cout << "Exception: " << e << std::endl;
failed = true;
}
std::cout << "-- Changing starting index to odd numer --" << std::endl;
// set to odd index then reallocate and set values
index[0] = 101;
region.SetIndex( index );
sourceImage->SetRegions( region );
sourceImage->Allocate();
{
itk::ImageRegionIteratorWithIndex<InputImageType> outIt(sourceImage, region);
for ( outIt.GoToBegin(); !outIt.IsAtEnd(); ++outIt )
{
// we multiply by ten for more precision
outIt.Set( outIt.GetIndex()[0]*10 );
}
}
monitor1->SetInput( sourceImage );
try
{
// update with 2,1 shrink factor
unsigned int factors[2] = { 2, 1 };
std::cout << "== Testing with shrink factors " << factors[0] << " " << factors[1] << " == " << std::endl;
bin->SetShrinkFactors(factors);
monitor2->UpdateLargestPossibleRegion();
// check values
itk::ImageRegionConstIteratorWithIndex<OutputImageType> inIt( monitor2->GetOutput(),
monitor2->GetOutput()->GetLargestPossibleRegion() );
for (inIt.GoToBegin(); !inIt.IsAtEnd(); ++inIt)
{
if (inIt.Get() != static_cast< int >( inIt.GetIndex()[0]*factors[0] )*10 + 5 )
{
std::cout << "Wrong pixel value at " << inIt.GetIndex() << " of " << inIt.Get() << std::endl;
failed = true;
}
}
}
catch (itk::ExceptionObject &e)
{
std::cout << "Exception: " << e << std::endl;
failed = true;
}
try
{
// update with 3,1 shrink factor
unsigned int factors[2] = { 3, 1 };
std::cout << "== Testing with shrink factors " << factors[0] << " " << factors[1] << " == " << std::endl;
bin->SetShrinkFactors(factors);
monitor2->UpdateLargestPossibleRegion();
// check values
itk::ImageRegionConstIteratorWithIndex<OutputImageType> inIt( monitor2->GetOutput(),
monitor2->GetOutput()->GetLargestPossibleRegion() );
for (inIt.GoToBegin(); !inIt.IsAtEnd(); ++inIt)
{
if (inIt.Get() != static_cast< int >(inIt.GetIndex()[0]*factors[0]+1 )*10 )
{
std::cout << "Wrong pixel value at " << inIt.GetIndex() << " of " << inIt.Get() << std::endl;
failed = true;
}
}
}
catch (itk::ExceptionObject &e)
{
std::cout << "Exception: " << e << std::endl;
failed = true;
}
index[0] = 0;
index[1] = 3;
region.SetIndex( index );
for (unsigned int shrink = 1; shrink < 12; ++shrink)
{
// update with 3,1 shrink factor
unsigned int factors[2] = { 1, shrink };
std::cout << "== Testing with shrink factors " << factors[0] << " " << factors[1] << " == " << std::endl;
for (unsigned int x = 1; x < 10; ++x )
for (unsigned int y = 2*shrink; y < 20; ++y )
{
// fill in an image
size[0] = x;
size[1] = y;
region.SetSize( size );
sourceImage->SetRegions( region );
sourceImage->Allocate();
std::cout << "--Resolution " << x << " " << y << "--" << std::endl;
itk::ImageRegionIteratorWithIndex<InputImageType> outIt(sourceImage, region);
for ( outIt.GoToBegin(); !outIt.IsAtEnd(); ++outIt )
{
// we multiply by ten so for more precision
outIt.Set( outIt.GetIndex()[0]*10 );
}
try
{
bin->SetShrinkFactors(factors);
monitor2->UpdateLargestPossibleRegion();
// check values
itk::ImageRegionConstIteratorWithIndex<OutputImageType> inIt( monitor2->GetOutput(),
monitor2->GetOutput()->GetLargestPossibleRegion() );
bool lfailed = false;
for (inIt.GoToBegin(); !inIt.IsAtEnd(); ++inIt)
{
int expectedValue = inIt.GetIndex()[0]*10;
if (inIt.Get() != expectedValue )
{
if (!lfailed)
{
std::cout << "--Resolution " << x << " " << y << "--" << std::endl;
}
std::cout << "Wrong pixel value at " << inIt.GetIndex() << " of " << inIt.Get() << ", expected: " <<
expectedValue << std::endl;
lfailed = failed = true;
}
}
if (lfailed)
{
monitor2->GetOutput()->Print(std::cout);
exit(1);
}
}
catch (itk::ExceptionObject &e)
{
std::cout << "Exception: " << e << std::endl;
failed = true;
}
}
}
if ( failed )
{
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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