compile error: cannot convert from 'const cv::Mat' to 'IplImage' with dlib 19.19 and OpenCV 4.2.0 · Issue #1955 · davisking/dlib · GitHub
![c++ - OpenCv first steps - no suitable constructor exists to convert from " IplImage *" to "cv::_InputArray" - Stack Overflow c++ - OpenCv first steps - no suitable constructor exists to convert from " IplImage *" to "cv::_InputArray" - Stack Overflow](https://i.stack.imgur.com/ttYvb.png)
c++ - OpenCv first steps - no suitable constructor exists to convert from " IplImage *" to "cv::_InputArray" - Stack Overflow
![c++ - OpenCv first steps - no suitable constructor exists to convert from " IplImage *" to "cv::_InputArray" - Stack Overflow c++ - OpenCv first steps - no suitable constructor exists to convert from " IplImage *" to "cv::_InputArray" - Stack Overflow](https://i.stack.imgur.com/v86pc.png)