OpenCV on Raspberry Pi without OpenGL for display.
jay-t wrote 12/19/2015 at 18:15 • 1 pointI have a software for face detecting on webcam input. It doesn't open a window on the Raspberry Pi with the detected faces. It just ends with an error message: GdkGLExt-WARNING **: Window system doesn't support OpenGL. So as a workaround I try now to build OpenCV without OpenGL support. In the hope it will run my program later. Does anyone know if this will work? Or knows how to get away the error message?
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Hi,
I did the same some times ago (OpenCV on Raspberry Pi, with camera) but I did not had your problem. I could show up Windows with the frames with no problems.
Are you sure you installed all the necessary libraries for OpenCV ?
When installing OpenCV on Rapsberry Pi I usually follow this tutorial (http://www.pyimagesearch.com/2015/02/23/install-opencv-and-python-on-your-raspberry-pi-2-and-b/)
But I miss step 7 and 9 to 11 and instead I use a "sudo apt-get install libopencv-dev python-opencv"
More information on packages necessary to run OpenCv on linux here : http://docs.opencv.org/2.4/doc/tutorials/introduction/linux_install/linux_install.html
I might upload a Raspbian Image with OpenCV pre-installed in the following week for my VrTracker project ;)
Good luck !
Are you sure? yes | no