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Using Samples of cudaoptflow, I am trying to run Nvidia Optical Flow sdk.

code :

 while(1)
    {
            Mat frame;
            cap >> frame; //read every frame
            if(frame.empty())
                break;
            Mat reference_image = Mat::zeros(frame.size(), frame.type());

            Ptr<NvidiaOpticalFlow_1_0> nvof = NvidiaOpticalFlow_1_0::create(
            frame.size().width, frame.size().height, perfPreset,
             true, false, false, gpuId);

            Mat flowx, flowy, flowxy, upsampledFlowXY, image;

            nvof->calc(frame, reference_image, flowxy);
            nvof->upSampler(flowxy, frame.size().width, frame.size().height,
                                        nvof->getGridSize(), upsampledFlowXY);

            Mat planes[] = { flowx, flowy };
        split(upsampledFlowXY, planes);
        flowx = planes[0]; flowy = planes[1];

        drawOpticalFlow(flowx, flowy, image, 10);
            outputv.write(image);
            char c = cv::waitKey(25);
            if (c ==27)
                    break;
            nvof->collectGarbage();
    }

Error on running:

OpenCV(4.1.2) /docker/opencv_contrib-4.1.2/modules/cudaoptflow/src/nvidiaOpticalFlow.cpp:172: error: (-6:Unknown error code -6) Cannot find NvOF library. in function 'LoadNvidiaModules'

System :

OPENCV - 4.1.2
Installed it inside docker container with cuda 10.1 : https://hub.docker.com/r/nvidia/cuda/
 Image : nvidia/cuda
 cuda_version : 10.1
 OS: ubuntu18.04

Using Samples of cudaoptflow, I am trying to run Nvidia Optical Flow sdk.

code :

 while(1)
    {
            Mat frame;
            cap >> frame; //read every frame
            if(frame.empty())
                break;
            Mat reference_image = Mat::zeros(frame.size(), frame.type());

            Ptr<NvidiaOpticalFlow_1_0> nvof = NvidiaOpticalFlow_1_0::create(
            frame.size().width, frame.size().height, perfPreset,
             true, false, false, gpuId);

            Mat flowx, flowy, flowxy, upsampledFlowXY, image;

            nvof->calc(frame, reference_image, flowxy);
            nvof->upSampler(flowxy, frame.size().width, frame.size().height,
                                        nvof->getGridSize(), upsampledFlowXY);

            Mat planes[] = { flowx, flowy };
        split(upsampledFlowXY, planes);
        flowx = planes[0]; flowy = planes[1];

        drawOpticalFlow(flowx, flowy, image, 10);
            outputv.write(image);
            char c = cv::waitKey(25);
            if (c ==27)
                    break;
            nvof->collectGarbage();
    }

Error on running:

OpenCV(4.1.2) /docker/opencv_contrib-4.1.2/modules/cudaoptflow/src/nvidiaOpticalFlow.cpp:172: error: (-6:Unknown error code -6) Cannot find NvOF library. in function 'LoadNvidiaModules'

System :

OPENCV - 4.1.2
Installed it inside docker container with cuda 10.1 : https://hub.docker.com/r/nvidia/cuda/
 Image : nvidia/cuda
 cuda_version : 10.1
 OS: ubuntu18.04