I am using this Python script to display my webcam:
from opencv.cv import *
from opencv.highgui import *
import sys
cvNamedWindow("w1", CV_WINDOW_AUTOSIZE)
camera_index = 0
capture = cvCreateCameraCapture(camera_index)
def repeat():
global capture #declare as globals since we are assigning to them now
global camera_index
frame = cvQueryFrame(capture)
cvShowImage("w1", frame)
c = cvWaitKey(10)
if c == "q":
sys.exit(0)
if __name__ == "__main__":
while True:
repeat()
It is working quite well, but I would like to set this display inside my Qt application.
How can I use the IplImage
OpenCV image into a Qt VideoWidget
?
It looks like we need to bind this C++ code in Python :
QImage& cvxCopyIplImage(const IplImage *pIplImage, QImage &qImage)
{
if(!CV_IS_IMAGE(pIplImage)) return qImage;
int w = pIplImage->width;
int h = pIplImage->height;
if(qImage.width() != w || qImage.height() != h)
{
qImage = QImage(w, h, QImage::Format_RGB32);
}
int x, y;
for(x = 0; x < pIplImage->width; ++x)
{
for(y = 0; y < pIplImage->height; ++y)
{
CvScalar color = cvGet2D(pIplImage, y, x);
if(pIplImage->nChannels == 1)
{
int v = color.val[0];
qImage.setPixel(x, y, qRgb(v,v,v));
}
else
{
int r = color.val[2];
int g = color.val[1];
int b = color.val[0];
qImage.setPixel(x, y, qRgb(r,g,b));
}
}
}
if(pIplImage->origin != IPL_ORIGIN_TL)
{
qImage = qImage.mirrored(false, true);
}
return qImage;
}