C + + random mosaic diagram Program

Effect:

Or grayscale, the cell size is adjustable

Code:

#include <opencv2\opencv.hpp> #include <windows.h>struct parameters{parameters () {size=cv::size (640,480 ); fps=25;nf=50;save= ""; crosssize= cv::size (5); crosscolor = 0;show=true;seed=cv::gettickcount (); color=false; Cellsize = Cv::size (5, 5);} CV::SIZESIZE;INTFPS;INTNF;STD::STRINGSAVE;CV::SIZECROSSSIZE;UCHARCROSSCOLOR;BOOLSHOW;INT64SEED;BOOLCOLOR;CV:: Sizecellsize;void Setparas (Cv::size_size,int_fps,int_nf,std::string_save,cv::size_crosssize,uchar_crosscolor, bool_show,int64_seed,bool_color,cv::size_cellsize) {size= _size; fps= _fps; nf= _nf; save= _save; crossSize= _cross Size; crosscolor = _crosscolor; show= _show; seed= _seed; color= _color; cellsize= _cellsize;} void Showparas () {std::cout << "size:" << size << std::endl;std::cout << "fps:" << fps <  < Std::endl;std::cout << "NF:" << NF << std::endl;std::cout << "Save:" << save << Std::endl;std::cout << "crosssize:" << CrosSsize << std::endl;std::cout << "Crosscolor:" << crosscolor << std::endl;std::cout << "Sho W: "<< (show?") TRUE ":" FALSE ") << std::endl;std::cout <<" seed: "<< seed << std::endl;std::cout <<" color : "<< color << std::endl;std::cout <<" cellsize: "<< cellsize << Std::endl;}};  void Help () {std::cout << "*-help:. \ n" << "Randomvideo.exe-help | to the use.  \ n "<<" randomvideo.exe-size= (640,580) | To set video size.  \ n "<<" randomvideo.exe-fps=25 | To set video fps (default is 25).  \ n "<<" randomvideo.exe-nf=50 | To set number of frames. "<<" If fps is means, the video would last 2 seconds (50/25).  \ n "<<" Randomvideo.exe-save=example1 | "<<" to set video name, only *.avi support, "<<" need input \ ". Avi\". " << "If empty, the default name is Local-system-time.avi, your PrevioUS files are safe.  \ n "<<" randomvideo.exe-crosssize= (15,5) | "<<" to set the size of cross. " << "(height, width) You can see the showing window.  \ n "<<" randomvideo.exe-crosscolor=0 | RECOMMD not to set it. "<<" If = 0, Black (default);  if = 255, white.\n\n "<<" randomvideo.exe-show=true | RECOMMD to is TRUE. "<<" If FALSE, the window to show the video is stopped.  \ n "<<" randomvideo.exe-seed=15 | RECOMMD not to set it. "<<" If empty, the local time would be used and then, "<<" You'll get different video each time.  \ n \ nthe "<<" {NEW} randomvideo.exe-color=true | If FALSE, the video is gray.  \ n "<<" {NEW} randomvideo.exe-cellsize= (2,3) | To control the size of pixel size. "<<" If cellsize= (2,3), the image width would be seperated into 2 parts, "<<" the image height would be seperate D into 3 parts. In Defalut mode pixel size as 1 would be used! " << "in order to getExact pixel size, you need to calculate it by yourself. \ n "<<" example:\n "<<" randomvideo.exe-size= (640,580)-fps=25-nf=50-crosssize= (15,5)-color=1-cellsiz e= (5,5) \ n "<<" the other parameters using the default is fine. \ n "<< Std::endl;} void Getparas (int argn, char** argv, Parameters & _parameters) {if (argn <= 1) {std::cout << "Using default par Ameter to generate video.\n "<<" How do I use? Please check the usage by input \ "Randomvideo.exe-help\" \ n "<< std::endl;help (); exit (0);} Else{std::map<std::string, std::string> table;for (int i = 1; i<argn; ++i) {std::string sub (argv[i]); std:: String name = Sub.substr (1, sub.find ("=")-1); Table.insert ({name, Sub.substr (sub.find ("=") +1, Sub.length ()-sub.find (" = ")-1)}); if (Table.count ("help") = = 1) {help (); exit (0);} if (Table.count ("size") = = 1) {cv::size _size (atoi (table["Size"].substr (1, table["size"].find (",")-1). C_STR ()), Atoi ( table["Size"].substr (table["Size"].find (",") +1, table["size"].Length ()-table["Size"].find (",")-2). C_STR ())); _parameters.size = _size;} Else_parameters.size = Cv::size (640, 480), if (Table.count ("crosssize") = = 1) {cv::size _crosssize (atoi (table[) Crosssize "].substr (1, table[" Crosssize "].find (", ")-1). C_STR ()), Atoi (table[" Crosssize "].substr (table[" Crosssize " ].find (",") + 1, table["Crosssize"].length ()-table["Crosssize"].find (",")-2). C_STR ())); _parameters.crosssize = _ Crosssize;} Else_parameters.crosssize = Cv::size (5), if (Table.count ("crosscolor") = = 1) _parameters.crosscolor = Atoi (table[" Crosscolor "].c_str ()) Else_parameters.crosscolor = 0;if (Table.count (" fps ") = = 1) _parameters.fps = atoi (table[" fps "]. C_str ()); else_parameters.fps = 25;if (Table.count ("nf") = = 1) _parameters.nf = atoi (table["NF"].c_str ()); Else_ PARAMETERS.NF = 50;if (Table.count ("save") = = 1) _parameters.save = table["save" + ". avi"; else{systemtime sys; Getlocaltime (&sys); char fname[100] = {};sprintf_s (fname, +, "%4d-%02d-%02d_%02d_%02d_%02d.avi", Sys.wyear, Sys.wmonth, SyS.wday, Sys.whour, Sys.wminute, sys.wsecond); _parameters.save = fname;} if (Table.count ("show") = = 1) _parameters.show = (table["show"] = = "TRUE"); else_parameters.show = True;if (Table.count (" Seed ") = = 1) _parameters.seed = atoi (table[" Seed "].c_str ()); Else{systemtime Sys; Getlocaltime (&sys); _parameters.seed = sys.wyear + sys.wmonth + sys.wday + sys.whour + Sys.wminute + sys.wSecond;} /*if (Table.count ("color") = = 1) {Cv::scalar _color (atoi (table["Color"].substr (1, table["Color"].find (",")-1). C_STR ( ), Atoi (table["Color"].substr (table["Color"].find (",") + 1, table["Color"].find_last_of (",")-table["Color"].find ( ",")-2). C_STR ()), atoi (table["Color"].substr (table["Color"].find_last_of (",") + 1, table["Color"].find_last_of (")" )-table["Color"].find_last_of (",")-1). C_STR ())); _parameters.color = _color;} Else_parameters.size = Cv::size (640, 480), */if (Table.count ("color") = = 1) _parameters.color = (table["color"] = = "TRUE") ; else_parameters.color = True;if (Table.count ("cellsize") = =1) {Cv::size _cellsize (atoi (table["Cellsize"].substr (1, table["cellsize"].find (",")-1). C_STR ()), Atoi (table[" Cellsize "].substr (table[" cellsize "].find (", ") + 1, table[" Cellsize "].length ()-table[" Cellsize "].find (", ")-2). c_ STR ())); _parameters.cellsize = _cellsize;} Else_parameters.cellsize = Cv::size (2, 2);} _parameters.showparas ();} void Randmatrix (Cv::mat & IMG, int64 seed, Cv::size cell=cv::size (0,0)) {cv::rng RNG (seed); if (cell = = cv::size (0, 0) | | Cell.width > Img.cols | |  Cell.height > Img.rows) {for (size_t j = 0, J < img.rows; ++j) {uchar* pdata = img.ptr<uchar> (j); for (size_t i = 0; i < Img.cols; ++i) {Pdata[i] = rng.uniform (0, 255);}}} else{size_t stepx = img.cols/cell.width;size_t stepy = img.rows/cell.height;for (size_t j = 0; j < img.rows; j+=s Tepy) {size_t lasty (j + stepy), if (lasty >= img.rows) lasty = img.rows-1;for (size_t i = 0; i < img.cols; i + = stepx {size_t lastx (i+stepx); if (Lastx >= img.cols) Lastx = Img.cols-1;img.rowrange (J, LAStY). Colrange (i, LASTX). Setto (Rng.uniform (0,255));}}} void Addcross (Cv::mat & IMG, cv::size Cszie, cv::scalar Scalar) {int x_center = (img.cols-1)/2, Y_center = (img.row S-1)/2;CV::P oint p1_tl (X_center-(cszie.width-1)/2, Y_center-(cszie.height-1)/2), P1_BD (X_center + (cszie.wi DTH-1)/2, Y_center + (cszie.height-1)/2), P2_tl (X_center-(cszie.height-1)/2, Y_center-(cszie.width-1)/2 ), P2_BD (X_center + (cszie.height-1)/2, Y_center + (cszie.width-1)/2); Cv::rectangle (IMG, P1_TL, P1_BD, scalar,-1); Cv::rectangle (IMG, P2_TL, P2_BD, scalar,-1);} int main (int argn, char** argv) {parameters _pa;getparas (argn, argv, _pa); Cv::videowriter writer (_pa.save, CV_FOURCC (' M ') , ' J ', ' P ', ' G '), double (_pa.fps), _pa.size), Cv::mat FRAME0 = Cv::mat::zeros (_pa.size, CV_8UC1); Cv::mat frame1 = Cv::mat:: Zeros (_pa.size, CV_8UC1); Cv::mat frame2 = Cv::mat::zeros (_pa.size, CV_8UC1); for (int i=0; i<_pa.nf; ++i) {Randmatrix ( FRAME0, _pa.seed + i, _pa.cellsize); Addcross (FRAME0, _Pa.crosssize, _pa.crosscolor); Randmatrix (Frame1, 0.3* (_pa.seed + i), _pa.cellsize); Addcross (Frame1, _pa.crosssize, _ Pa.crosscolor); Randmatrix (Frame2, 0.7* (_pa.seed + i), _pa.cellsize); Addcross (frame2, _pa.crosssize, _pa.crosscolor); Cv::mat f3;if (_pa.color) Cv::merge (Std::vector<cv::mat>{frame0,frame1,frame2}, F3); Elsecv::merge (std:: VECTOR&LT;CV::MAT&GT;{FRAME0, FRAME0, FRAME0}, F3), writer << f3;if (_pa.show) cv::imshow ("video", F3); CV:: Waitkey (10);} return 0;}

　　

Instructions for use:

See Help ()

C + + random mosaic diagram Program