 | 1 | initial version |
I want to convert a float matrix to an unsigned char matrix with the same number of channels.
cv::Mat imgA(3, 3, CV_32FC(5));
// image is filled with something
cv::Mat imgB;
imgA.convertTo(imgB, CV_8UC(imgA.channels()));
How can the additional channels of a CV_8UC image be accessed? The following gives a segmentation fault.
std::cout << (int) imgB.at<uchar>(0,0,1) << "\n";
| | 2 | No.2 Revision |
I want to convert a float matrix to an unsigned char matrix with the same number of channels.
cv::Mat imgA(3, 3, CV_32FC(5));
// image is filled with something
cv::Mat imgB;
imgA.convertTo(imgB, CV_8UC(imgA.channels()));
How can the additional channels of a CV_8UC image be accessed? The following gives a segmentation fault.
std::cout << (int) imgB.at<uchar>(0,0,1) << "\n";