opencv 读入图像并显示以及ITK 读入数据

opencv 读入图像并显示

#include <opencv2/core/core.hpp>  
#include <opencv2/highgui/highgui.hpp>  


using namespace cv;


int main()
{
	// 读入一张图片（游戏原画）  
	Mat img = imread("pic.jpg");
	// 创建一个名为 "游戏原画"窗口  
	cvNamedWindow("游戏原画");
	// 在窗口中显示游戏原画  
	imshow("游戏原画", img);
	// 等待6000 ms后窗口自动关闭  
	waitKey(6000); //这句话很重要
}

itk 读入nii图像并遍历以及获取尺寸等，itk 写图像也是一样的。

#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkNiftiImageIO.h"

void main()
{


	using ImageIOType = itk::NiftiImageIO;
    using Short3DImageType = itk::Image< ShortPixelType, 3 >;
	using ReaderType = itk::ImageFileReader< Short3DImageType  >;
    ReaderType::Pointer Reader = ReaderType::New();
    Reader->SetFileName(InputFileName);
	ImageIOType::Pointer gNiftiImageIO = ImageIOType::New();
	Reader->SetImageIO(gNiftiImageIO);
	Reader->Update();
	Short3DImageType::Pointer OriImg = Reader->GetOutput();

    Short3DImageType::RegionType WLinputRegion = OriImg->GetBufferedRegion();


	Short3DIteratorType WLit(OriImg, WLinputRegion);
	WLit.GoToBegin();
	
	while (!WLit.IsAtEnd())
	{
		float temp =round( (float(WLit.Get())- dmin)*dFactor );

		++WLit;
	}

   Short3DImageType::SizeType MSize = WLinputRegion .GetSize();
}