EADST

The memory needs to be released. But the uchar variable cannot be deleted directly after assigned. Here is the code.

Mat new_img = Mat::ones(2, 2, CV_8UC3);
uchar *img_array = new uchar[new_img.rows*new_img.cols];
img_array = new_img.data;
img_array = NULL;
delete[] img_array;