相关疑难解决方法(0)

运行valgrind,我在opencv中得到大量的内存泄漏,尤其是使用namedWindow的函数.

主要是,我有一个图像CSImg和PGImg:

std::string cs = "Computer Science Students";
std::string pg = "Politics and Government Students";
CSImg.displayImage(cs);
cv::destroyWindow(cs);
PGImg.displayImage(pg);
cv::destroyWindow(pg);

显示图像功能是:

void ImageHandler::displayImage(std::string& windowname){
namedWindow(windowname);
imshow(windowname, m_image);
waitKey(7000);

}

当我执行displayImage时,Valgrind给了我巨大的内存泄漏.例如:

==6561== 2,359,544 bytes in 1 blocks are possibly lost in loss record 3,421 of 3,421
==6561==    at 0x4C2B3F8: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==6561==    by 0x4F6C94C: cv::fastMalloc(unsigned long) (in /usr/lib/libopencv_core.so.2.3.1)
==6561==    by 0x4F53650: cvCreateData (in /usr/lib/libopencv_core.so.2.3.1)
==6561==    by 0x4F540F0: cvCreateMat (in /usr/lib/libopencv_core.so.2.3.1)
==6561==    by 0x56435AF: cvImageWidgetSetImage(_CvImageWidget*, void const*) (in /usr/lib/libopencv_highgui.so.2.3.1)
==6561==    by 0x5644C14: …