showManyImage

/************************************************************************ * Copyright(c) 2012 Gavin Liu * All rights reserved. * * File: showManyImage.cpp * Brief: * Version: 1.0 * Author: Gavin Liu * Email: gavinliuyi@msn.com * Date: 2012/08/28 * History: ************************************************************************/ #include <opencv2/core/core.hpp> #include <opencv2/imgproc/imgproc.hpp> #include <opencv2/highgui/highgui.hpp> using namespace cv; using namespace std; void imshowMany(const std::string& _winName, const vector<Mat>& _imgs); int main(void) { vector<Mat> imgs(6); imgs[0] = imread("cm.png"); imgs[1] = imread("wr.png"); imgs[2] = imread("lina.png"); imgs[3] = imread("dr.png"); imgs[4] = imread("pom.png"); imgs[5] = imread("qop.png"); imshowMany("DOTA2_Hero", imgs); waitKey(); return 0; } void imshowMany(const std::string& _winName, const vector<Mat>& _imgs) { int nImg = (int)_imgs.size(); Mat dispImg; int size; int x, y; // w - Maximum number of images in a row // h - Maximum number of images in a column int w, h; // scale - How much we have to resize the image float scale; int max; if (nImg <= 0) { printf("Number of arguments too small....\n"); return; } else if (nImg > 12) { printf("Number of arguments too large....\n"); return; } else if (nImg == 1) { w = h = 1; size = 300; } else if (nImg == 2) { w = 2; h = 1; size = 300; } else if (nImg == 3 || nImg == 4) { w = 2; h = 2; size = 300; } else if (nImg == 5 || nImg == 6) { w = 3; h = 2; size = 200; } else if (nImg == 7 || nImg == 8) { w = 4; h = 2; size = 200; } else { w = 4; h = 3; size = 150; } dispImg.create(Size(100 + size*w, 60 + size*h), CV_8UC3); for (int i= 0, m=20, n=20; i<nImg; i++, m+=(20+size)) { x = _imgs[i].cols; y = _imgs[i].rows; max = (x > y)? x: y; scale = (float) ( (float) max / size ); if (i%w==0 && m!=20) { m = 20; n += 20+size; } Mat imgROI = dispImg(Rect(m, n, (int)(x/scale), (int)(y/scale))); resize(_imgs[i], imgROI, Size((int)(x/scale), (int)(y/scale))); } namedWindow(_winName); imshow(_winName, dispImg); }