使用该函数后，openCV中的内存管理出现问题：
cvCreateMemStorage（0）;
这就是我想要做的事情：我正在循环使用许多图像，我使用cvExtractSurf（）来提取关键点和描述符。我为每一帧都做到这一点，并且每两帧我都在进行一定的处理。我只需要在内存中保留两个帧，因此我使用以下方法创建了内存：
cvCreateMemStorage（0）;
我希望一旦在每个帧上完成处理就完全清理内存存储，以便重用它来存储下一帧的关键点和描述符。我需要这样做，因为我正在处理大量的帧，因此创建大量的内存存储不是最好的选择。
我尝试使用cvClearMemStorage（），cvClearSeq（）和cvRelease（），但没有任何工作，我总是遇到错误。这里是重要部分的代码（我删除了与questin不直接相关的所有行，所以当然这段代码不会编译）：
CvMemStorage* storageSrc = cvCreateMemStorage(0);
CvMemStorage* storageDest = cvCreateMemStorage(0);
// loop on all .bmp files in the selected directory
cout << "STARTING READING THE FRAME" << endl;
while(myHandle!=INVALID_HANDLE_VALUE && myFile.cFileName!= buffer){
buffer=myFile.cFileName;
fileLocation = dirName + buffer;
frameNames.push_back(fileLocation);
frame = cvLoadImage(fileLocation.c_str(), CV_LOAD_IMAGE_COLOR);
frameResized = cvCreateImage(cvSize(processingSizeX, processingSizeY), 8, 3);
cvResize(frame, frameResized, CV_INTER_AREA);
resizedGray = cvCreateImage(cvSize(processingSizeX, processingSizeY), 8, 1);
cvCvtColor( frameResized, resizedGray, CV_RGB2GRAY );
if(!frame){
fprintf(stderr, "Error when loading the images.");
exit(-1);
}
if(nbFrameRead == 0){
cout << endl;
cout << "ZONE 1" << endl;
cout << endl;
cvSetImageROI( correspond, cvRect( 0, 0, processingSizeX, processingSizeY) );
cvCopy( frameResized, correspond );
cvResetImageROI( correspond );
cvExtractSURF( resizedGray, 0, &srcFrameKeypoints, &srcFrameDescriptors, storageSrc, params );
nbFrameRead++;
}
else if(nbFrameRead == 1){
cout << endl;
cout << "ZONE 2" << endl;
cout << endl;
cvExtractSURF( resizedGray, 0, &destFrameKeypoints, &destFrameDescriptors, storageDest, params );
//printf("Nb Key Points in frame %d: %d\n", nbFrameRead, srcFrameDescriptors->total);
// clear memory and switch current frame to last frame
cvClearSeq(srcFrameKeypoints);
cvClearSeq(srcFrameDescriptors);
cvClearSeq(descriptorsOrderedSrc);
cvClearMemStorage(storageSrc);
srcFrameKeypoints = cvCloneSeq(destFrameKeypoints, storageSrc);
descriptorsOrderedSrc = cvCloneSeq(descriptorsOrderedDest, storageSrc);
cvClearSeq(destFrameKeypoints);
cvClearSeq(destFrameDescriptors);
cvClearSeq(descriptorsOrderedDest);
cvClearMemStorage(storageDest);
cvSetImageROI( correspond, cvRect( 0, 0, processingSizeX, processingSizeY) );
cvCopy( frameResized, correspond );
cvResetImageROI( correspond );
nbFrameRead++;
}
else if(nbFrameRead < bufferSize + 2){
cout << endl;
cout << "ZONE 3" << endl;
cout << endl;
cvExtractSURF( resizedGray, 0, &destFrameKeypoints, &destFrameDescriptors, storageDest, params );
//printf("Nb Key Points in frame %d: %d\n", nbFrameRead, srcFrameDescriptors->total);
//clear memory and switch current frame to last frame
cvClearSeq(srcFrameKeypoints);
cvClearSeq(srcFrameDescriptors);
cvClearSeq(descriptorsOrderedSrc);
cvClearMemStorage(storageSrc);
srcFrameKeypoints = cvCloneSeq(destFrameKeypoints, storageSrc);
descriptorsOrderedSrc = cvCloneSeq(descriptorsOrderedDest, storageSrc);
cvClearSeq(destFrameKeypoints);
cvClearSeq(destFrameDescriptors);
cvClearSeq(descriptorsOrderedDest);
cvClearMemStorage(storageDest);
nbFrameRead++;
}
else{
cout << endl;
cout << "ZONE 4" << endl;
cout << endl;
cvExtractSURF( resizedGray, 0, &destFrameKeypoints, &destFrameDescriptors, storageDest, params );
// clear memory and switch current frame to last frame
cvClearSeq(srcFrameKeypoints);
cvClearSeq(srcFrameDescriptors);
cvClearSeq(descriptorsOrderedSrc);
cvClearMemStorage(storageSrc);
srcFrameKeypoints = cvCloneSeq(destFrameKeypoints, storageSrc);
descriptorsOrderedSrc = cvCloneSeq(descriptorsOrderedDest, storageSrc);
cvClearSeq(destFrameKeypoints);
cvClearSeq(destFrameDescriptors);
cvClearSeq(descriptorsOrderedDest);
cvClearMemStorage(storageDest);
nbFrameRead++;
nbFrameSmoothed++;
}
FindNextFile(myHandle,&myFile);
}
此代码有什么问题吗？如果是，我应该怎么做才能完全清理storageSrc和storageDest，以便根据需要多次重复使用它？
提前感谢您的回答。