我正在使用C++的ITK库计算3D图像的形状特征。所以我按照ITK文档中给出的示例进行操作。该示例使用2D图像,并提取不同的形状特征。在我的程序中,我只想获取给定3D图像的形状属性,并将它们存储在一个
到目前为止,这是我所拥有的:
我能够读取3D图像并计算其形状属性。但是我有一个问题:我无法将它们存储在
array <double>
中。到目前为止,这是我所拥有的:
//principal declarations
const unsigned int Dimension = 3;
typedef unsigned char PixelType;
typedef unsigned short LabelType;
typedef itk::Image<PixelType, Dimension> InputImageType;
typedef itk::Image< LabelType, Dimension > OutputImageType;
typedef itk::ShapeLabelObject< LabelType, Dimension > ShapeLabelObjectType;
typedef itk::LabelMap< ShapeLabelObjectType > LabelMapType;
typedef itk::ImageFileReader<InputImageType> ReaderType;
typedef itk::ConnectedComponentImageFilter <InputImageType, OutputImageType > ConnectedComponentImageFilterType;
typedef itk::LabelImageToShapeLabelMapFilter< OutputImageType, LabelMapType> I2LType;
typedef itk::Array< double > MeasurementVectorType;
MeasurementVectorType formes(9);
InputImageType::Pointer image;
//read the 3Dimage
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName(file);
reader->Update();
image = reader->GetOutput();
ConnectedComponentImageFilterType::Pointer connected = ConnectedComponentImageFilterType::New ();
connected->SetInput(image);
connected->Update();
// create the shape label map filter
I2LType::Pointer i2l = I2LType::New();
i2l->SetInput( connected->GetOutput() );
i2l->SetComputePerimeter(true);
i2l->Update();
LabelMapType *labelMap = i2l->GetOutput();
//calculate shape attributes for the first label
ShapeLabelObjectType *labelObject = labelMap->GetNthLabelObject(0);
//stock the attributes in the array
formes[0]=labelObject->GetBoundingBox();
formes[1]=labelObject->GetNumberOfPixels();
formes[2]=labelObject->GetPhysicalSize();
formes[3]=labelObject->GetElongation();
formes[4]=labelObject->GetPerimeter();
formes[5]=labelObject->GetRoundness();
formes[6]=labelObject->GetEquivalentSphericalRadius();
formes[7]=labelObject->GetEquivalentSphericalPerimeter();
formes[8]=labelObject->GetFlatness();
我能够读取3D图像并计算其形状属性。但是我有一个问题:我无法将它们存储在
array <double>
中,因为labelObject
方法返回一个const
类型。我遇到了这个错误:IntelliSense: no suitable conversion function from const itk::ImageRegion<3U> to "double" exists
是否有人使用ITK来做这件事?如果有其他方法可以实现,请帮忙指点一下吗?
非常感谢您的帮助。