由于mat到IplImage *转换导致内存泄漏分段故障核心转储

Question

我有一个功能

void doCorrectIntensityVariation(Mat& image)
{   
            Mat kernel = getStructuringElement(MORPH_ELLIPSE, Size(19,19));
            Mat closed;
            morphologyEx(image, closed, MORPH_CLOSE, kernel);
            image.convertTo(image, CV_32F); // divide requires floating-point
            divide(image, closed, image, 1, CV_32F);
            normalize(image, image, 0, 255, NORM_MINMAX);
            image.convertTo(image, CV_8UC1); // convert back to unsigned int
            imshow("gamma corrected",image); cvWaitKey(0);

}

和

IplImage* processImage(IplImage *imrgb, IplImage *n_im)
{
..................
..................
Mat pre(n_im);    
doCorrectIntensityVariation(pre);
n_im=new IplImage( pre);// this line throws segmentation fault (core dumped)
...............
...............
return n_im;
}

我的程序一直运行到最后一行 但在最后抛出 glibc检测到 *：双重免费或损坏（！prev）：0x0886dee8 *  分段错误（核心转储） 我已经尝试了所有我熟悉的技巧，但我被困住了，不知道出了什么问题