热力图_c++ opencv 热力图

#include "StdAfx.h"
//#include <opencv2/contrib/contrib.hpp>
//#include <opencv2/core/core.hpp>
//#include <opencv2/highgui/highgui.hpp>
#include <opencv2/highgui/highgui.hpp>  
#include <opencv2/imgproc/imgproc.hpp>  
#include <opencv2/core/core.hpp>  
using namespace cv;
 
using namespace cv;
 
int main()
{
    // Get the path to the image, if it was given
    // if no arguments were given.
  //  string filename;
  //  if (argc > 1) {
    //    filename = string(argv[1]);
   // }
    // The following lines show how to apply a colormap on a given image
    // and show it with cv::imshow example with an image. An exception is
    // thrown if the path to the image is invalid.
   
        Mat img0 = imread("D://code//avitoimgae//avitoimgae//avitoimgae//aa.jpg");
        // Throw an exception, if the image can't be read:
        if(img0.empty()) {
            CV_Error(CV_StsBadArg, "Sample image is empty. Please adjust your path, so it points to a valid input image!");
        }
        // Holds the colormap version of the image:
        Mat cm_img0;
        // Apply the colormap:
        applyColorMap(img0, cm_img0, COLORMAP_JET);
        // Show the result:
		imshow("img0", img0);
        imshow("cm_img0", cm_img0);
        waitKey(0);
    
 
    return 0;
}