Hi I have some code that used to work with opencv3 but now throws an exception when I try to use cv::createTrackbar or cv::createButton using the QT backends for highgui. The actual exception
OpenCV(4.1.0-openvino) /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/highgui/src/window.cpp:573: error: (-213:The function/feature is not implemented) The library is compiled without QT support in function 'createButton'
I'm using OpenVino2019 R1, and I am wondering if the binaries have been compiled with the defiintion -DWITH_QT=ON
thanks for the reply, how can i get intel optimised opencv4 with qt bindings. Is there anything special between the opencv version shipped with openvino, compared to the opencv source?
Nothing special, the sources are from GitHub. Most configuration parameters are default, several dependencies are built-in, InferenceEngine integration is enabled, notable cmake options which can affect optimizations are: -DCPU_BASELINE=SSE4_2 and -DENABLE_HARDENING=ON.
Thanks, if thats so it would be good to have a build from source option, or page with the exhaustive list of flags enabled.
If you could share a link to such a page that would be a big help
No such page exists yet, currently one should use official OpenCV documentation and included opencv_version application to get cmake output. We are going to add auto-generated file with used build options in next release (R2).