使用SimpleITK读取和保存NIfTI/DICOM文件实例

2023-07-22 06:05:14 65

##usingsimpleITKtoloadandsavedata. importSimpleITKassitk itk_img=sitk.ReadImage('./nifti.nii.gz') img=sitk.GetArrayFromImage(itk_img) print("imgshape:",img.shape) ##save out=sitk.GetImageFromArray(img) ##out.SetSpacing(itk_img.GetSpacing()) ##out.SetOrigin(itk_img.GetOrigin()) sitk.WriteImage(out,'simpleitk_save.nii.gz')

importsys importSimpleITKassitk importnumpyasnp dcm_directory="./flair_dicom" series_ids=sitk.ImageSeriesReader.GetGDCMSeriesIDs(dcm_directory) print("seriesids:",series_ids) ifnotseries_ids: print("ERROR:givendirectorydosenotaDICOMseries.") sys.exit(1) series_file_names=sitk.ImageSeriesReader.GetGDCMSeriesFileNames(dcm_directory,series_ids[0]) series_reader=sitk.ImageSeriesReader() series_reader.SetFileNames(series_file_names) image3D=series_reader.Execute() size=image3D.GetSize() print("Imagesize:",size[0],size[1],size[2]) image_array=sitk.GetArrayFromImage(image3D) #SimpleITK读取的图像数据的坐标顺序为zyx，即从多少张切片到单张切片的宽和高； #而据SimpleITKImage获取的origin和spacing的坐标顺序则是xyz origin=image3D.GetOrigin() spacing=image3D.GetSpacing() print("origin:",origin,"spacing:",spacing)

/******************************************************* 控制台运行程序输入：程序名称读取图像文件名保存图像文件名输出：保存另一种类型的图像功能：图像在jpeg和bmp两种格式之间互换 ********************************************************/ #include"itkImageFileReader.h" #include"itkImageFileWriter.h" #include"itkImageIOFactory.h" #include"itkBMPImageIOFactory.h" #include"itkJPEGImageIOFactory.h" #include intmain(intargc,char*argv[]) { if(argc<3) { std::cerr<<"Usage:"<ImageType; typedefitk::ImageFileReaderReaderType; typedefitk::ImageFileWriterWriterType; ReaderType::Pointerreader=ReaderType::New(); WriterType::Pointerwriter=WriterType::New(); constchar*inputFilename=argv[1]; constchar*outputFilename=argv[2]; reader->SetFileName(inputFilename); writer->SetFileName(outputFilename); writer->SetInput(reader->GetOutput()); try { writer->Update(); } catch(itk::ExceptionObject&err) { std::cerr<<"ExceptionObjectcaught!"<

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使用SimpleITK读取和保存NIfTI/DICOM文件实例

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