Opencv fails to allocate memory
Hello,
In part of my code I am doing this!
// LONG_HIST, etc. are pre-defined
// getHistoryLong() etc. return IplImage*
myMasks.clear(); // Clear so that we only have one set at a time.
myMasks.push_back(std::make_pair<int, IplImage>(LONG_HIST, *cvCloneImage(repmo.getHistoryLong())));
myMasks.push_back(std::make_pair<int, IplImage>(LONG_HIST_NEW, *cvCloneImage(repmo.getHistoryLong())));
myMasks.push_back(std::make_pair<int, IplImage>(SHORT_HIST, *cvCloneImage(repmo.getHistoryLong())));
My image processing application is such that when I detect a certain event, I store the mask information of my current scene using a method called updateMasks() which, in essence, does the above. However, I only update the images only once. I have also in place a flag called "savedMasks" and this is what i do when I save the masks to my current scene object:
if(currentSceneObject->getSaveMasks == true) {
repMo.updateMasks(); // Update mask image vector
currentSceneObject->saveMasks(repMo.getMaskImages()); // save them against current scene
currentSceneObject->setSaveMasks == false; // clear the flag
}
If my understand is correct, It will only save it once, but not multiple times.
__WHY AM I CLONING OR DEEP COPYING THE IplImage*(s)__
The reason I am cloning the image is that if I don't and simply dereference it, after stack call is returned, the information is gone! I mean partially. Because it turns out that when I am trying to fetch the saved values back into the main application It is having access violation errors.
This solves the problem except the fact that now I am getting memory allocation failures as:
OpenCV Error: Insufficient Memory (failed to allocate xyz bytes) in unknown function, file
..\..\opecv\modules\core\src\alloc.cpp line 52.
from OpenCV. I believe that using cvCloneImage() I am making too many calls to malloc but not freeing the memory correctlyl. However, I might be wrong. Shall I store it as OpenCV and load it as IplImage* pointer to be safe?
