This forum is disabled, please visit https://forum.opencv.org
 | 1 | initial version |
use cv::imread, this function returns cv::Mat
Mat src = imread("1.tif");
src.release(); // free mem
| | 2 | No.2 Revision |
use Use cv::imread, this function returns cv::Mat
Mat src = imread("1.tif");
src.release(); // free mem
cv::Mat will free memory only if it was allocated by create method (if Mat object owns this memory):
Mat src(100, 100, CV_32FC1);
src.release(); // will free memory
When you create Mat object from your pointer or from old C structs (CvMat, IplImage), Mat object will not free this memory.
float* data = new float[100 * 100];
Mat src(100, 100, CV_32FC1, data);
src.release(); // will not free memory
delete [] data;