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just added frame saving

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This commit is contained in:
Gary Bradski 2011-02-13 04:04:30 +00:00
parent 82856150c1
commit 251918e120
1 changed files with 13 additions and 1 deletions
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14
samples/cpp/starter_video.cpp
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@ -10,15 +10,20 @@
#include <opencv2/highgui/highgui.hpp>
#include <iostream>
#include <vector>
#include <stdio.h>
using namespace cv;
using namespace std;
//hide the local functions in an anon namespace
namespace {
void help(char** av) {
cout << "\nThis program justs gets you started reading images from video\n"
"Usage:\n./" << av[0] << " <video device number>\n"
<< "q,Q,esc -- quit\n"
<< "space -- save frame\n\n"
<< "\tThis is a starter sample, to get you up and going in a copy pasta fashion\n"
<< "\tThe program captures frames from a camera connected to your computer.\n"
<< "\tTo find the video device number, try ls /dev/video* \n"
@ -27,8 +32,10 @@ namespace {
}
int process(VideoCapture& capture) {
int n = 0;
char filename[200];
string window_name = "video | q or esc to quit";
cout << "press q or esc to quit" << endl;
cout << "press space to save a picture. q or esc to quit" << endl;
namedWindow(window_name, CV_WINDOW_KEEPRATIO); //resizable window;
Mat frame;
for (;;) {
@ -42,6 +49,11 @@ namespace {
case 'Q':
case 27: //escape key
return 0;
case ' ': //Save an image
sprintf(filename,"filename%.3d.jpg",n++);
imwrite(filename,frame);
cout << "Saved " << filename << endl;
break;
default:
break;
}