80后可能还对儿时玩过的一种经典木质的拼图板游戏记忆犹新，一般是一种4*4或5*5规格的手持活动板，通过挪动每个小板子的位置，拼出来板子上完整的图像，那时候还没有网吧，手机也还是大哥大的天下，所以这也可以算得上是最早的“手游”了吧……

今天我们用OpenCV来复现一下儿时的经典！

代码：

#include "core/core.hpp"#include "highgui/highgui.hpp"#include "imgproc/imgproc.hpp"#include <time.h>using namespace cv;Mat Sourceimage, Spilteimage, Rebuildimage, Dstimage;int rows, cols;int Roirows, Roicols;vector<Mat>arraryimage;void Randarrary(vector<Mat> &vectorMat); //随机排列子图像序列函数static int vectornumber = 0;void OnMouseAction(int event, int x, int y, int flags, void *ustc); //鼠标回调事件函数int mainFun(){Sourceimage = imread("D:\\test\\lena.jpg");imshow("Source image", Sourceimage);rows = 6; //将图像分割成rows行cols = 4; //将图像分割成cols列Roirows = Sourceimage.rows / rows;Roicols = Sourceimage.cols / cols;Spilteimage = Mat::zeros(Sourceimage.rows, Sourceimage.cols, Sourceimage.type());Dstimage = Mat::zeros(Sourceimage.rows, Sourceimage.cols, Sourceimage.type());for (int i = 0; i<rows; i++){for (int j = 0; j<cols; j++){Mat SourceRoi = Sourceimage(Rect(j*Roicols, i*Roirows, Roicols - 1, Roirows - 1));arraryimage.push_back(SourceRoi);}}// 随机函数Randarrary(arraryimage);for (int i = 0; i<rows; i++){for (int j = 0; j<cols; j++){Mat SpilterRoi = Spilteimage(Rect(j*Roicols, i*Roirows, Roicols - 1, Roirows - 1));addWeighted(SpilterRoi, 0, arraryimage[vectornumber], 1, 0, SpilterRoi);vectornumber++;imshow("Splite image", Spilteimage);waitKey(150);}}setMouseCallback("Splite image", OnMouseAction);waitKey();return 0;}//*******************************************************************////随机调换所有的子图像序列的位置，用于在 Splite image中显示//*******************************************************************//void Randarrary(vector<Mat>& vectorMat){for (int i = 0; i<vectorMat.size(); i++){srand(int(time(0)));int a = rand() % (vectorMat.size() - i) + i;swap(vectorMat[i], vectorMat[a]);}}//*******************************************************************////鼠标回调函数，用于获取需要查找的子图像在原图像中的位置，并在叠加显示在目标图像中//*******************************************************************//void OnMouseAction(int event, int x, int y, int flags, void *ustc){if (event == CV_EVENT_LBUTTONDOWN){Mat RoiSpilte, RoiSource;int rows = (y / Roirows)*Roirows;int clos = (x / Roicols)*Roicols;RoiSpilte = Spilteimage(Rect(clos, rows, Roicols, Roirows));imshow("Slice", RoiSpilte);Mat image = Mat::zeros(Sourceimage.rows - Roirows, Sourceimage.cols - Roicols, CV_32FC1);matchTemplate(Sourceimage, RoiSpilte, image, 1);normalize(image, image, 0, 1, NORM_MINMAX);double minV = 0;double maxV = 0;Point minP, maxP;minMaxLoc(image, &minV, &maxV, &minP, &maxP);Mat ROIDst = Dstimage(Rect(minP.x, minP.y, Roicols, Roirows));addWeighted(ROIDst, 0, RoiSpilte, 1, 0, ROIDst, -1);imshow("Jigsaw image", Dstimage);}}//-----开始------void COpenCVLearningDlg::OnBnClickedStartButton(){mainFun();}

效果：

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原文地址：/dcrmg/article/details/52069043