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Opencv Match Template(轮廓匹配)

时间:2018-10-02 20:35:31      阅读:621      评论:0      收藏:0      [点我收藏+]

标签:img   hsv   not   rectangle   com   invalid   stream   模板   amp   

#include <iostream>
#include <opencv2/opencv.hpp>

using namespace std;
using namespace cv;

Mat img1, img2, img3, img4,img_result, img_gray1, img_gray2, img_gray3, img_hsv1, img_hsv2, img_hsv3;
MatND img_hist1, img_hist2, img_hist3;

char win1[] = "window1";
char win2[] = "window2";
char win3[] = "window3";
char win4[] = "window4";
char win5[] = "window5";

int threshold_value = 0;
int max_value = 255;
RNG rng(12345);

int Demo_Match_Template();
string convertToString(double d);
void Demo_Match(int,void*);

int index = 0;
int match_threshold = 20;
int max_track = 255;
int match_method = CV_TM_SQDIFF;

//模板匹配
int Demo_Match_Template()
{
  namedWindow(win1, CV_WINDOW_AUTOSIZE);
  //namedWindow(win2, CV_WINDOW_AUTOSIZE);
  namedWindow(win3, CV_WINDOW_AUTOSIZE);

  img1 = imread("D://images//1//p5.jpg");
  img2 = imread("D://images//1//p5_1.jpg");
  if (img1.empty()||img2.empty())
  {
    cout << "could not load image..." << endl;
    return 0;
  }
  //imshow(win1, img1);
  createTrackbar("Trace bar", win1, &match_threshold, max_track, Demo_Match);
  Demo_Match(0,0);
  imshow(win1, img1);
  return 0;
}

void Demo_Match(int, void*)
{
  int width = img1.cols - img2.cols + 1;
  int height = img1.rows - img2.rows + 1;
  img3 = Mat(width,height,CV_32FC1);

  matchTemplate(img1, img2, img3, match_method, Mat());
  //归一化
  normalize(img3, img3, 0, 1, NORM_MINMAX,-1,Mat());

  Point minLoc;
  Point maxLoc;
  Point tempLoc;
  double min, max;
  minMaxLoc(img3, &min, &max, &minLoc, &maxLoc, Mat());

  if (match_method==CV_TM_SQDIFF || match_method==CV_TM_SQDIFF_NORMED)
  {
    tempLoc = minLoc;
  }
  else
  {
    tempLoc = maxLoc;
  }
  img1.copyTo(img4);
  //绘制矩形
  rectangle(img4, Rect(tempLoc.x, tempLoc.y,img2.cols,img2.rows),Scalar(0,0,255),2,8);
  //rectangle(img3, Rect(tempLoc.x, tempLoc.y, img2.cols, img2.rows), Scalar(0, 0, 255), 2, 8);

  imshow(win2,img2);
  imshow(win3,img4);
}

string convertToString(double d)
{
  ostringstream os;
  if (os << d)
  {
    return os.str();
  }
  return "Invalid conversion...";
}

int main()
{
  Demo_Match_Template();

  waitKey(0);
  return 0;
}

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Opencv Match Template(轮廓匹配)

标签:img   hsv   not   rectangle   com   invalid   stream   模板   amp   

原文地址:https://www.cnblogs.com/herd/p/9737314.html

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