opencv c++ code error while applying some function to video file - c++

Question

I get this error while trying to run OpenCV C++ code using qtcreator and the code used to
add some features to video file
opencv error :assertion failed <fixed type<> ::<<Mat*>obj>->type<>==m type> in create file c:\opencv\sources\mogules\core\src\matrix.cpp
I tried to add file dWidth and dHeight but it did not work.
int main(){
Mat frame;
Mat image;
VideoCapture cap("file source");
namedWindow("window",1);
while(1){
cap>>frame;
GpyrTempIIR g;
g.processOnFrame(frame,image); //this is the process i do on frame
imshow("window",image);
waitKey(33);
}
}
void GpyrTempIIR::processOnFrame(const Mat& src, Mat& out) {
src.convertTo(src,CV_32F); //Convert to Float
resize(srcFloat,blurred,blurredsize,0,0,CV_INTER_AREA);
/* Method in openCv to resize a video
* INTER_AREA is a fast method that gets the average of several pixels, which
is good for shrinking an image but not so good for enlarging an image. */
if(first){
first=false;
blurred.copyTo(LowPassHigh); // Using Storing Method
blurred.copyTo(LowPassLow);
src.copyTo(out);
} else {
//apply Temporal filter substraction of two IIR LowPass Filters
LowPassHigh = LowPassHigh * (1-fHigh) + fHigh * blurred;
LowPassLow = LowPassLow * (1-fLow) + fLow * blurred;
blurred = LowPassHigh - LowPassLow;
blurred*=alpha; // amplify , multuplying by alpha value
resize(blurred, outFloat, src.size(), 0, 0, CV_INTER_LINEAR); // resize back
outFloat += srcFloat; // add back to original frame
outFloat.convertTo(out, CV_8U); // convert to 8 bit
}
}