applyColorMap不起作用;模板匹配影响

• Z时代
• 2024-01-10
• 分类：问答

似乎有一些模板匹配代码的影响，它不会让我应用颜色映射。 根据文档类型applyColorMap不起作用;模板匹配影响

灰度或有色并不重要。

这里是我的代码：

#include "opencv2/highgui/highgui.hpp" 
#include "opencv2/imgproc/imgproc.hpp" 
#include "opencv2/contrib/contrib.hpp" 
#include <iostream> 
#include <stdio.h> 
using namespace std; 
using namespace cv; 
/// Global Variables 
Mat img; 
Mat templ; 
Mat result; 
const char* image_window = "Source Image"; 
const char* result_window = "Result window"; 
int match_method; 
int max_Trackbar = 5; 
/// Function Headers 
void MatchingMethod(int, void*); 
int main(int, char** argv) 
{ 
    /// Load image and template 
    img = imread(argv[1], 1); 
    templ = imread(argv[2], 1); 
    /// Create windows 
    namedWindow(image_window, WINDOW_AUTOSIZE); 
    namedWindow(result_window, WINDOW_AUTOSIZE); 
    /// Create Trackbar 
    const char* trackbar_label = "Method: \n 0: SQDIFF \n 1: SQDIFF NORMED \n 2: TM CCORR \n 3: TM CCORR NORMED \n 4: TM COEFF \n 5: TM COEFF NORMED"; 
    createTrackbar(trackbar_label, image_window, &match_method, max_Trackbar, MatchingMethod); 
    MatchingMethod(0, 0); 
    waitKey(0); 
    return 0; 
} 
void MatchingMethod(int, void*) 
{ 
    /// Source image to display 
    Mat img_display; 
    img.copyTo(img_display); 
    /// Create the result matrix 
    int result_cols = img.cols - templ.cols + 1; 
    int result_rows = img.rows - templ.rows + 1; 
    result.create(result_rows, result_cols, CV_32FC1); 
    /// Do the Matching and Normalize 
    matchTemplate(img, templ, result, match_method); 
    normalize(result, result, 0, 1, NORM_MINMAX, -1, Mat()); 
    /// Localizing the best match with minMaxLoc 
    double minVal; double maxVal; Point minLoc; Point maxLoc; 
    Point matchLoc; 
    minMaxLoc(result, &minVal, &maxVal, &minLoc, &maxLoc, Mat()); 
    if(match_method == TM_SQDIFF || match_method == TM_SQDIFF_NORMED) 
    { matchLoc = minLoc; } 
    else 
    { matchLoc = maxLoc; } 
    applyColorMap(result, result, COLORMAP_JET); 
    /// Show me what we got 
    rectangle(img_display, matchLoc, Point(matchLoc.x + templ.cols , matchLoc.y + templ.rows), Scalar::all(255), 2, 8, 0); 
    rectangle(result, matchLoc, Point(matchLoc.x + templ.cols , matchLoc.y + templ.rows), Scalar::all(255), 2, 8, 0); 
    cout << endl << "Type result: " << result.type() << endl; 
    cout << endl << "Type img_display: " << img_display.type() << endl; 
    //cout << endl << "Type result: " << result.type() << endl; 
    imshow(image_window, img_display); 
    imshow(result_window, result); 
    return; 
} 

关于文档（colormaps）我看不出有什么我可能已经错过了。 生成的图像仍然是灰度。

回答：

Mat coloredResult;  
applyColorMap(result, coloredResult , COLORMAP_JET); 

回答：

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