73 lines
1.6 KiB
C++
73 lines
1.6 KiB
C++
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#include "opencv2/imgproc.hpp"
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#include "opencv2/highgui.hpp"
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#include <cctype>
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#include <iostream>
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#include <iterator>
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#include <stdio.h>
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using namespace std;
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using namespace cv;
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static void help()
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{
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cout << "\nThis program demonstrates template match with mask.\n"
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"Usage:\n"
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"./mask_tmpl <image_name> <template_name> <mask_name>, Default is ../data/lena_tmpl.jpg\n"
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<< endl;
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}
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int main( int argc, const char** argv )
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{
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const char* filename = argc == 4 ? argv[1] : "../data/lena_tmpl.jpg";
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const char* tmplname = argc == 4 ? argv[2] : "../data/tmpl.png";
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const char* maskname = argc == 4 ? argv[3] : "../data/mask.png";
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Mat img = imread(filename);
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Mat tmpl = imread(tmplname);
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Mat mask = imread(maskname);
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Mat res;
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if(img.empty())
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{
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help();
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cout << "can not open " << filename << endl;
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return -1;
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}
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if(tmpl.empty())
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{
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help();
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cout << "can not open " << tmplname << endl;
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return -1;
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}
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if(mask.empty())
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{
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help();
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cout << "can not open " << maskname << endl;
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return -1;
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}
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//int method = CV_TM_SQDIFF;
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int method = CV_TM_CCORR_NORMED;
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matchTemplate(img, tmpl, res, method, mask);
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double minVal, maxVal;
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Point minLoc, maxLoc;
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Rect rect;
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minMaxLoc(res, &minVal, &maxVal, &minLoc, &maxLoc);
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if(method == CV_TM_SQDIFF || method == CV_TM_SQDIFF_NORMED)
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rect = Rect(minLoc, tmpl.size());
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else
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rect = Rect(maxLoc, tmpl.size());
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rectangle(img, rect, Scalar(0, 255, 0), 2);
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imshow("detected template", img);
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waitKey();
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return 0;
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}
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