基于opencv2.4.3、VS2010的背景差分法目标检测

//--------------------------------------------------------------------------------------// // name: display_multi_windows // // input: the array of picture: _imgs[4] // width of the video: _pic_width // height of the video: _pic_height // output: a big windows that display 4 small windows // attention: this function can only display color video or black_and_white video (use: CV_8UC3 or CV_8UC1) // author: bozi // time: 2014.09.15 //--------------------------------------------------------------------------------------// //#include <opencv2/opencv.hpp> #include <opencv/cv.h> #include <opencv2/core/core.hpp> //#include <opencv2/imgproc/imgproc.hpp> //#include <opencv2/highgui/highgui.hpp> using namespace cv; Mat imshowMany(const vector<Mat>& _imgs, int _pic_width, int _pic_height) { int nImg = (int)_imgs.size(); Size frameSize( (_pic_width*2 + 60), (_pic_height*2 + 60)); Mat dispImg; //dispImg.create(Size(100 + size*w, -60 + size*h),CV_8UC1); dispImg.create(frameSize,CV_8UC1); //CV_8UC1:显示单通道图像（黑白图像） CV_8UC3:显示3通道图像（彩色图像） 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 Mat::zeros(100,100,CV_8UC1); } else if (nImg > 12) { printf("Number of arguments too large....\n"); return Mat::zeros(100,100,CV_8UC1); } 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; } for (int i= 0, m=20, n=30; i<nImg; i++, m+=(20+size+20)) { x = _imgs[i].cols; y = _imgs[i].rows; if (i%w==0 && m!=20) { m = 20; n += 30 + _pic_height; } Mat imgROI = dispImg(Rect(m, n, x, y)); resize(_imgs[i], imgROI, Size(x, y)); //每幅图片显示标题 string words = ""; switch(i) { case 0: words = "pic_1"; break; case 1: words = "pic_2"; break; case 2: words = "pic_3"; break; case 3: words = "pic_4"; break; default:words = "nothing"; break; } putText( dispImg, words, Point( m + _pic_width/3 ,n - 10),FONT_HERSHEY_COMPLEX_SMALL, 1, Scalar(255, 0, 0) ); //文本显示的位置 } return dispImg; //namedWindow(_winName); //imshow(_winName, dispImg); }