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comparison c/main.cpp @ 4:6509f5b1d795

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updated and added makefile to compile C++ code using opencv in its directory, whipped up simple test to read the pixels in BW images
author Nicolas Saunier <nico@confins.net>
date Fri, 23 Oct 2009 00:26:47 -0400
parents ace29ecfb846
children
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3:ace29ecfb846 4:6509f5b1d795
1 #include "opencv/cv.h"
2 #include "opencv/highgui.h"
3
1 #include <iostream> 4 #include <iostream>
2 5
3 using namespace std; 6 using namespace std;
4 7
8 IplImage* allocateImage(const CvSize& size, const int& depth, const int& channels) {
9 IplImage* image = cvCreateImage(size, depth, channels);
10
11 if (!image) {
12 cerr << "Error: Couldn't allocate image. Out of memory?\n" << endl;
13 exit(-1);
14 }
15
16 return image;
17 }
18
5 int main(int argc, char *argv[]) { 19 int main(int argc, char *argv[]) {
20 //cout << "Hello World" << endl;
6 21
7 cout << "Hello World" << endl; 22 CvCapture *inputVideo = cvCaptureFromFile(argv[1]);
23
24 IplImage* frame = cvQueryFrame(inputVideo);
25 IplImage* bwFrame = allocateImage(cvSize(frame->width, frame->height), IPL_DEPTH_8U, 1);
26
27 int frameNum = 0;
28 while (frame) {
29 if (frameNum%10 == 0)
30 cout << frameNum << endl;
31 cvConvertImage(frame, bwFrame);
32
33 for (int i=0; i<frame->height; ++i)
34 for (int j=0; j<frame->width; ++j)
35 int gray = cvGetReal2D(bwFrame, i, j);
36
37 frame = cvQueryFrame(inputVideo);
38 frameNum++;
39 }
8 40
9 return 1; 41 return 1;
10 } 42 }