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itkWasmImageIOTest.cxx
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itkWasmImageIOTest.cxx
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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://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 "itkWasmImageIOFactory.h"
#include "itkWasmImageIO.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkTestingMacros.h"
#include "itkMetaDataObject.h"
int
itkWasmImageIOTest(int argc, char * argv[])
{
if (argc < 6)
{
std::cerr << "Missing parameters" << std::endl;
std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv) << " InputImage ImageDirectory ConvertedDirectory ImageCBOR ConvertedCBOR" << std::endl;
return EXIT_FAILURE;
}
const char * inputImageFile = argv[1];
const char * imageDirectory = argv[2];
const char * convertedDirectoryFile = argv[3];
const char * imageCBOR = argv[4];
const char * convertedCBORFile = argv[5];
itk::WasmImageIOFactory::RegisterOneFactory();
constexpr unsigned int Dimension = 3;
using PixelType = unsigned char;
using ImageType = itk::Image<PixelType, Dimension>;
using ImagePointer = ImageType::Pointer;
ImagePointer inputImage = nullptr;
ITK_TRY_EXPECT_NO_EXCEPTION(inputImage = itk::ReadImage<ImageType>(inputImageFile));
auto imageIO = itk::WasmImageIO::New();
const auto metaDataDict = inputImage->GetMetaDataDictionary();
using MetaDataStringType = itk::MetaDataObject<std::string>;
const std::string testEntryKey = "MetaTestEntry";
std::string testEntryValue = "ItsThere";
itk::EncapsulateMetaData<std::string>(inputImage->GetMetaDataDictionary(), testEntryKey, testEntryValue);
using WriterType = itk::ImageFileWriter<ImageType>;
auto wasmWriter = WriterType::New();
//wasmWriter->SetImageIO( imageIO );
wasmWriter->SetFileName( imageDirectory );
wasmWriter->SetInput( inputImage );
ITK_TRY_EXPECT_NO_EXCEPTION(wasmWriter->Update());
using ReaderType = itk::ImageFileReader<ImageType>;
auto wasmReader = ReaderType::New();
//wasmReader->SetImageIO( imageIO );
wasmReader->SetFileName( imageDirectory );
ITK_TRY_EXPECT_NO_EXCEPTION(wasmReader->Update());
ImagePointer writtenReadImage = wasmReader->GetOutput();
const auto writtenReadMetaDataDict = writtenReadImage->GetMetaDataDictionary();
ITK_TEST_EXPECT_TRUE(writtenReadMetaDataDict.HasKey(testEntryKey));
const auto entryValue = dynamic_cast<const MetaDataStringType *>(writtenReadMetaDataDict.Get(testEntryKey));
// "MetaImageIO"
const auto writtenReadEntryValue = entryValue->GetMetaDataObjectValue();
ITK_TEST_EXPECT_EQUAL(writtenReadEntryValue, testEntryValue);
ITK_TRY_EXPECT_NO_EXCEPTION(itk::WriteImage(writtenReadImage, convertedDirectoryFile));
wasmWriter->SetFileName( imageCBOR );
ITK_TRY_EXPECT_NO_EXCEPTION(wasmWriter->Update());
wasmReader->SetFileName( imageCBOR );
ITK_TRY_EXPECT_NO_EXCEPTION(wasmReader->Update());
ITK_TRY_EXPECT_NO_EXCEPTION(itk::WriteImage(wasmReader->GetOutput(), convertedCBORFile));
return EXIT_SUCCESS;
}