opencv中Mat与数组之间值传递的快速方法

1.将数组内容传递给Mat

unsigned char cbuf[height][width];
cv::Mat img(height, width, CV_8UC1, (unsigned char*)cbuf);

2.将Mat中的内容传递给数组

std::vector<uchar> array(mat.rows*mat.cols);
if (mat.isContinuous())
array = mat.data;

unsigned char *array=new unsigned char[mat.rows*mat.cols];
if (mat.isContinuous())
array = mat.data;

uchar **array = new uchar*[mat.rows];
for (int i=0; i<mat.rows; ++i)
array[i] = new uchar[mat.cols];

for (int i=0; i<mat.rows; ++i)
array[i] = mat.ptr<uchar>(i);