1. A Brief Overview of
OpenCV
A Lightning Talk
Corey A. Spitzer
Omaha Dynamic Language User Group
July, 2009

2. The gist
image/video IO +
image/video manipulation +
webcam API +
computer vision and machine
learning algorithms
= AWESOME!

3. Easy, Breezy, Beautiful*
int main(int argc, char **argv) {
CvCapture *webcam = 0;
IplImage *frame = 0;
int key = 0;
webcam = cvCaptureFromCAM(0);
if(!webcam) {
fprintf(stderr, "Cannot initialize webcam!n" );
return 1;
}
cvNamedWindow("mywindow", CV_WINDOW_AUTOSIZE);
while(key != 'q') {
frame = cvQueryFrame(webcam); // get a frame
if(!frame) break; // error getting frame so skip it
cvShowImage("mywindow", frame); // show the frame
key = cvWaitKey(1); // exit when user presses ‘q’
}
cvDestroyWindow("mywindow");
cvReleaseCapture(&webcam);
return 0;
} * as easy, breezy, beautiful as C++ gets

4. Motion Detection

5. Facial Recognition
(not perfect)

6. Object Finding

7. Linkage
OpenCV Main Site:
http://opencv.willowgarage.com
Sourceforge Page:
http://sourceforge.net/projects/opencvlibrary/

8. Get the book!