Hello all, I'm new to OpenCv, computer vision in general and to this forum too (so...nice to meet you :-) ). I'm working on the most simple example of reading video from the cam of my laptop and store it in a file (well, to be honest, I apply a log polar transformation before). The problem is that the saved video plays too fast. Here's my basic code:
VideoCapture capture;
capture.open(0);
double fps = capture.get( CAP_PROP_FPS ); // get the fps of the camera, which is 30
VideoWriter writer;
Size size((int)capture.get(CAP_PROP_FRAME_WIDTH),(int)capture.get(CAP_PROP_FRAME_HEIGHT));
writer.open( "sample.avi", VideoWriter::fourcc('M','J','P','G'), fps, size);
Mat logpolar_frame, frame;
for(;;)
{
capture >> frame;
imshow("window1", frame);
logPolar(frame, logpolar_frame,...);
imshow(window2", logpolar_frame);
writer.write(logpolar_frame);
char c = waitKey(1000/fps); // here I tried lot of values, also fps and 1
if ( c == 27 )
break;
}
capture.release();
writer.release();Do you have any idea? Thank you.