OpenCV 2.0 - HoughLinesP memory allocation

[nicola.conci@…]

hi, I tried running the HoughLinesP function on a video, to check consistency of lines over successive frames. I guess there is something wrong with the allocation/deallocation though, since running it several times you notice the memory increases until the computer slows down.

if I comment the HoughLinesP function, everything runs smoothly.

That's a sample of the code (myFrame and edges are 320x240):

int blockSize=8;

for (int c=1;c<300;c++) {

cap >> myFrame;

cvtColor(myFrame, edges, CV_RGB2GRAY, 0);

Canny(edges, edges, 80, 120, 3, false);

for (int k=0;k<(edges.rows-blockSize);k+=blockSize-1) {

for (int l=0;l<(edges.cols-blockSize);l+=blockSize-1) {

vector<Vec4i> lines; Mat blockEdge(edges,Rect(l,k,blockSize,blockSize)); Mat blockOrig(myFrame,Rect(l,k,blockSize,blockSize)); APPLY HOUGH HoughLinesP(blockEdge, lines, 1, CV_PI/90, 5, 4, 10 );

blockEdge.release(); blockOrig.release();

}

}

waitKey(10); printf("Frame n: %d", c);

}

Thanks, Nicola