OpenCV儲存圖片：

#include <opencv2/opencv.hpp>

using namespace std;
using namespace cv;

int main(int argc, char* argv[])
{
	IplImage* img=cvLoadImage("D:/Demo.jpg");
	cvNamedWindow("My Image");
	cvShowImage("My Image",img);
	//儲存圖片
	cvSaveImage("out.jpg",img);
	cvWaitKey();
	cvDestroyWindow("My Image");
	cvReleaseImage(&img);
	return 0;
}
 

EmguCV儲存圖片：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Emgu.CV;
using Emgu.CV.Structure;
using Emgu.Util;
namespace EmguSaveImg
{
    class Program
    {
        static void Main(string[] args)
        {
            IntPtr img = CvInvoke.cvLoadImage("D:/Demo.jpg",Emgu.CV.CvEnum.LOAD_IMAGE_TYPE.CV_LOAD_IMAGE_ANYCOLOR);
            CvInvoke.cvNamedWindow("My Image");
            CvInvoke.cvShowImage("My Image", img);
            CvInvoke.cvSaveImage("out.jpg",img,img);
            CvInvoke.cvWaitKey(0);
            CvInvoke.cvDestroyWindow("My Image");
            CvInvoke.cvReleaseImage(ref img);
        }
    }
}