isOpened 243 apps/traincascade/cascadeclassifier.cpp if ( !fs.isOpened() ) isOpened 258 apps/traincascade/cascadeclassifier.cpp if ( !fs.isOpened() ) isOpened 429 apps/traincascade/cascadeclassifier.cpp if ( !fs.isOpened() ) isOpened 520 apps/traincascade/cascadeclassifier.cpp if ( !fs.isOpened() ) isOpened 535 apps/traincascade/cascadeclassifier.cpp if ( !fs.isOpened() ) isOpened 201 modules/calib3d/test/test_chesscorners.cpp if( !fs.isOpened() || board_list.empty() || !board_list.isSeq() || board_list.size() % 2 != 0 ) isOpened 205 modules/calib3d/test/test_chesscorners.cpp fs.isOpened(), (int)board_list.empty(), board_list.isSeq(), board_list.size()%2); isOpened 245 modules/calib3d/test/test_fisheye.cpp CV_Assert(fs_left.isOpened()); isOpened 251 modules/calib3d/test/test_fisheye.cpp CV_Assert(fs_object.isOpened()); isOpened 280 modules/calib3d/test/test_fisheye.cpp CV_Assert(fs_left.isOpened()); isOpened 286 modules/calib3d/test/test_fisheye.cpp CV_Assert(fs_object.isOpened()); isOpened 341 modules/calib3d/test/test_fisheye.cpp CV_Assert(fs_left.isOpened()); isOpened 347 modules/calib3d/test/test_fisheye.cpp CV_Assert(fs_object.isOpened()); isOpened 453 modules/calib3d/test/test_fisheye.cpp CV_Assert(fs_left.isOpened()); isOpened 459 modules/calib3d/test/test_fisheye.cpp CV_Assert(fs_right.isOpened()); isOpened 465 modules/calib3d/test/test_fisheye.cpp CV_Assert(fs_object.isOpened()); isOpened 521 modules/calib3d/test/test_fisheye.cpp CV_Assert(fs_left.isOpened()); isOpened 527 modules/calib3d/test/test_fisheye.cpp CV_Assert(fs_right.isOpened()); isOpened 533 modules/calib3d/test/test_fisheye.cpp CV_Assert(fs_object.isOpened()); isOpened 429 modules/calib3d/test/test_stereomatching.cpp if( resFS.isOpened() ) isOpened 434 modules/calib3d/test/test_stereomatching.cpp if( !resFS.isOpened() ) isOpened 548 modules/calib3d/test/test_stereomatching.cpp assert( fs.isOpened() ); isOpened 603 modules/calib3d/test/test_stereomatching.cpp if( !fs.isOpened() ) isOpened 624 modules/calib3d/test/test_stereomatching.cpp if( !fs.isOpened() ) isOpened 367 modules/core/include/opencv2/core/persistence.hpp CV_WRAP virtual bool isOpened() const; isOpened 1061 modules/core/include/opencv2/core/persistence.hpp if( !fs.isOpened() ) isOpened 952 modules/core/src/lda.cpp if (!fs.isOpened()) { isOpened 962 modules/core/src/lda.cpp if (!fs.isOpened()) isOpened 153 modules/core/src/pca.cpp CV_Assert( fs.isOpened() ); isOpened 5041 modules/core/src/persistence.cpp if( !fs.isOpened() ) isOpened 5165 modules/core/src/persistence.cpp bool ok = isOpened(); isOpened 5194 modules/core/src/persistence.cpp return isOpened() ? FileNode(fs, cvGetRootFileNode(fs, streamidx)) : FileNode(); isOpened 5203 modules/core/src/persistence.cpp if( !fs.isOpened() || !_str ) isOpened 5258 modules/core/src/persistence.cpp if( !isOpened() ) isOpened 5269 modules/core/src/persistence.cpp if( !isOpened() ) isOpened 81 modules/cudabgsegm/perf/perf_bgsegm.cpp ASSERT_TRUE(cap.isOpened()); isOpened 184 modules/cudabgsegm/perf/perf_bgsegm.cpp ASSERT_TRUE(cap.isOpened()); isOpened 337 modules/cudabgsegm/perf/perf_bgsegm.cpp ASSERT_TRUE(cap.isOpened()); isOpened 96 modules/cudabgsegm/test/test_bgsegm.cpp ASSERT_TRUE(cap.isOpened()); isOpened 143 modules/cudabgsegm/test/test_bgsegm.cpp ASSERT_TRUE(cap.isOpened()); isOpened 89 modules/cudacodec/perf/perf_video.cpp ASSERT_TRUE( reader.isOpened() ); isOpened 116 modules/cudacodec/perf/perf_video.cpp ASSERT_TRUE( reader.isOpened() ); isOpened 150 modules/cudacodec/perf/perf_video.cpp if (!writer.isOpened()) isOpened 842 modules/cudacodec/src/video_writer.cpp CV_Assert( fs.isOpened() ); isOpened 868 modules/cudacodec/src/video_writer.cpp CV_Assert( fs.isOpened() ); isOpened 86 modules/cudacodec/test/test_video.cpp ASSERT_TRUE(reader.isOpened()); isOpened 110 modules/cudacodec/test/test_video.cpp ASSERT_TRUE(reader.isOpened()); isOpened 104 modules/cudaimgproc/test/test_mean_shift.cpp ASSERT_TRUE(fs.isOpened()); isOpened 83 modules/cudalegacy/perf/perf_bgsegm.cpp ASSERT_TRUE(cap.isOpened()); isOpened 155 modules/cudalegacy/perf/perf_bgsegm.cpp ASSERT_TRUE(cap.isOpened()); isOpened 826 modules/cudaobjdetect/src/cascadeclassifier.cpp if (!fs.isOpened()) isOpened 98 modules/features2d/test/test_agast.cpp if (!fs.isOpened()) isOpened 101 modules/features2d/test/test_agast.cpp if (!fs.isOpened()) isOpened 110 modules/features2d/test/test_agast.cpp if (!fs.isOpened()) isOpened 252 modules/features2d/test/test_descriptors_regression.cpp if(!fs.isOpened()) isOpened 256 modules/features2d/test/test_descriptors_regression.cpp if( fs.isOpened() ) isOpened 195 modules/features2d/test/test_detectors_regression.cpp if( fs.isOpened() ) // Compare computed and valid keypoints. isOpened 214 modules/features2d/test/test_detectors_regression.cpp if( !fs.isOpened() ) isOpened 98 modules/features2d/test/test_fast.cpp if (!fs.isOpened()) isOpened 101 modules/features2d/test/test_fast.cpp if (!fs.isOpened()) isOpened 110 modules/features2d/test/test_fast.cpp if (!fs.isOpened()) isOpened 167 modules/imgcodecs/src/bitstrm.cpp assert( isOpened() && pos >= 0 ); isOpened 184 modules/imgcodecs/src/bitstrm.cpp assert( isOpened() ); isOpened 372 modules/imgcodecs/src/bitstrm.cpp assert( isOpened() ); isOpened 443 modules/imgcodecs/src/bitstrm.cpp assert( isOpened() ); isOpened 72 modules/imgcodecs/src/bitstrm.hpp bool isOpened(); isOpened 129 modules/imgcodecs/src/bitstrm.hpp bool isOpened(); isOpened 195 modules/imgcodecs/src/grfmt_bmp.cpp if( m_offset < 0 || !m_strm.isOpened()) isOpened 202 modules/imgcodecs/src/grfmt_pxm.cpp if( m_offset < 0 || !m_strm.isOpened()) isOpened 167 modules/imgcodecs/src/grfmt_sunras.cpp if( m_offset < 0 || !m_strm.isOpened()) isOpened 175 modules/imgproc/test/test_houghLines.cpp EXPECT_TRUE(fs.isOpened()) << "Cannot open sanity data file: " << xml; isOpened 179 modules/imgproc/test/test_houghLines.cpp EXPECT_TRUE(fs.isOpened()) << "Cannot open sanity data file: " << xml; isOpened 68 modules/imgproc/test/test_watershed.cpp if (orig.empty() || !fs.isOpened()) isOpened 574 modules/ml/src/lr.cpp if(fs.isOpened() == 0) isOpened 218 modules/ml/test/test_mltests2.cpp if( validationFS.isOpened() ) isOpened 226 modules/ml/test/test_mltests2.cpp if( !_fs.isOpened() ) isOpened 889 modules/objdetect/src/cascadedetect.cpp if( !fs.isOpened() ) isOpened 117 modules/objdetect/src/cascadedetect_convert.cpp if( !oldfs.isOpened() ) isOpened 198 modules/objdetect/src/cascadedetect_convert.cpp if( !newfs.isOpened() ) isOpened 109 modules/objdetect/test/test_cascadeandhog.cpp if( !_fs.isOpened() ) isOpened 153 modules/superres/src/frame_source.cpp CV_Assert( vc_.isOpened() ); isOpened 176 modules/superres/src/frame_source.cpp CV_Assert( vc_.isOpened() ); isOpened 226 modules/ts/src/ts_perf.cpp if(!storageIn.isOpened()) isOpened 236 modules/ts/src/ts_perf.cpp if (storageIn.isOpened()) isOpened 238 modules/ts/src/ts_perf.cpp if (storageOut.isOpened()) isOpened 248 modules/ts/src/ts_perf.cpp if (!storageOut.isOpened() && !storageOutPath.empty()) isOpened 250 modules/ts/src/ts_perf.cpp int mode = (storageIn.isOpened() && storageInPath == storageOutPath) isOpened 253 modules/ts/src/ts_perf.cpp if (!storageOut.isOpened()) isOpened 67 modules/video/perf/opencl/perf_bgfg_mog2.cpp ASSERT_TRUE(cap.isOpened()); isOpened 97 modules/video/perf/opencl/perf_bgfg_mog2.cpp ASSERT_TRUE(cap.isOpened()); isOpened 46 modules/video/test/ocl/test_bgfg_mog2.cpp ASSERT_TRUE(cap.isOpened()); isOpened 94 modules/video/test/ocl/test_bgfg_mog2.cpp ASSERT_TRUE(cap.isOpened()); isOpened 426 modules/videoio/include/opencv2/videoio.hpp CV_WRAP virtual bool isOpened() const; isOpened 588 modules/videoio/include/opencv2/videoio.hpp CV_WRAP virtual bool isOpened() const; isOpened 14 modules/videoio/misc/java/test/VideoCaptureTest.java private boolean isOpened; isOpened 24 modules/videoio/misc/java/test/VideoCaptureTest.java isOpened = false; isOpened 35 modules/videoio/misc/java/test/VideoCaptureTest.java assertFalse(capture.isOpened()); isOpened 41 modules/videoio/misc/java/test/VideoCaptureTest.java assertFalse(capture.isOpened()); isOpened 36 modules/videoio/perf/perf_input.cpp bool dummy = cap.isOpened(); isOpened 36 modules/videoio/perf/perf_output.cpp bool dummy = writer.isOpened(); isOpened 560 modules/videoio/src/cap.cpp if (capture && capture->isOpened()) isOpened 598 modules/videoio/src/cap.cpp if (capture && capture->isOpened()) isOpened 636 modules/videoio/src/cap.cpp if (isOpened()) release(); isOpened 642 modules/videoio/src/cap.cpp return isOpened(); isOpened 647 modules/videoio/src/cap.cpp if (isOpened()) release(); isOpened 652 modules/videoio/src/cap.cpp return isOpened(); isOpened 773 modules/videoio/src/cap.cpp if (isOpened()) release(); isOpened 778 modules/videoio/src/cap.cpp return isOpened(); isOpened 35 modules/videoio/src/cap_dshow.hpp virtual bool isOpened() const; isOpened 142 modules/videoio/src/cap_gphoto2.cpp virtual bool isOpened() const; isOpened 412 modules/videoio/src/cap_gphoto2.cpp if (isOpened()) { isOpened 1204 modules/videoio/src/cap_gphoto2.cpp if (capture->isOpened()) isOpened 1219 modules/videoio/src/cap_gphoto2.cpp if (capture->isOpened()) isOpened 596 modules/videoio/src/cap_intelperc.cpp if (!isOpened()) isOpened 103 modules/videoio/src/cap_intelperc.hpp virtual bool isOpened() const; isOpened 167 modules/videoio/src/cap_mjpeg_decoder.cpp bool isOpened() const; isOpened 197 modules/videoio/src/cap_mjpeg_decoder.cpp m_is_valid = isOpened(); isOpened 204 modules/videoio/src/cap_mjpeg_decoder.cpp if(isOpened()) isOpened 215 modules/videoio/src/cap_mjpeg_decoder.cpp if(isOpened()) isOpened 696 modules/videoio/src/cap_mjpeg_decoder.cpp virtual bool isOpened() const; isOpened 800 modules/videoio/src/cap_mjpeg_decoder.cpp if(isOpened()) isOpened 870 modules/videoio/src/cap_mjpeg_decoder.cpp return isOpened(); isOpened 915 modules/videoio/src/cap_mjpeg_decoder.cpp if( mjdecoder->isOpened() ) isOpened 366 modules/videoio/src/cap_mjpeg_encoder.cpp if( !strm.isOpened() ) isOpened 415 modules/videoio/src/cap_mjpeg_encoder.cpp bool isOpened() const { return strm.isOpened(); } isOpened 1478 modules/videoio/src/cap_mjpeg_encoder.cpp if( !iwriter->isOpened() ) isOpened 3792 modules/videoio/src/cap_msmf.cpp bool isOpened; isOpened 3855 modules/videoio/src/cap_msmf.cpp isOpened = false; isOpened 3864 modules/videoio/src/cap_msmf.cpp isOpened = SUCCEEDED(hr); isOpened 3867 modules/videoio/src/cap_msmf.cpp if (isOpened) isOpened 3872 modules/videoio/src/cap_msmf.cpp return isOpened; isOpened 3879 modules/videoio/src/cap_msmf.cpp isOpened = false; isOpened 3930 modules/videoio/src/cap_msmf.cpp if (isOpened) isOpened 3937 modules/videoio/src/cap_msmf.cpp return isOpened && grabberThread->getImageGrabber()->getRawImage()->isNew() && (waitResult == WAIT_OBJECT_0); isOpened 454 modules/videoio/src/cap_openni.cpp bool isOpened() const; isOpened 778 modules/videoio/src/cap_openni.cpp if( isOpened() ) isOpened 802 modules/videoio/src/cap_openni.cpp if( isOpened() ) isOpened 1118 modules/videoio/src/cap_openni.cpp if( !isOpened() ) isOpened 1357 modules/videoio/src/cap_openni.cpp if( capture->isOpened() ) isOpened 1368 modules/videoio/src/cap_openni.cpp if( capture->isOpened() ) isOpened 100 modules/videoio/src/cap_openni2.cpp bool isOpened() const; isOpened 402 modules/videoio/src/cap_openni2.cpp if( isOpened() ) isOpened 426 modules/videoio/src/cap_openni2.cpp if( isOpened() ) isOpened 700 modules/videoio/src/cap_openni2.cpp if( !isOpened() ) isOpened 910 modules/videoio/src/cap_openni2.cpp if( capture->isOpened() ) isOpened 921 modules/videoio/src/cap_openni2.cpp if( capture->isOpened() ) isOpened 61 modules/videoio/src/cap_winrt_capture.hpp virtual bool isOpened() const; isOpened 172 modules/videoio/src/precomp.hpp virtual bool isOpened() const = 0; isOpened 183 modules/videoio/src/precomp.hpp virtual bool isOpened() const = 0; isOpened 71 modules/videoio/test/test_basic_props.cpp if (!cap.isOpened()) isOpened 95 modules/videoio/test/test_basic_props.cpp if (!cap.isOpened()) isOpened 122 modules/videoio/test/test_basic_props.cpp if (!cap.isOpened()) isOpened 145 modules/videoio/test/test_basic_props.cpp if (!cap.isOpened()) isOpened 133 modules/videoio/test/test_ffmpeg.cpp if (writer.isOpened() == false) isOpened 244 modules/videoio/test/test_ffmpeg.cpp CV_Assert(writers->operator[](i)->isOpened()); isOpened 285 modules/videoio/test/test_ffmpeg.cpp CV_Assert(writer->isOpened()); isOpened 326 modules/videoio/test/test_ffmpeg.cpp CV_Assert(readers->operator[](i)->isOpened()); isOpened 349 modules/videoio/test/test_ffmpeg.cpp CV_Assert(capture->isOpened()); isOpened 439 modules/videoio/test/test_video_io.cpp if (!writer.isOpened()) isOpened 74 modules/videoio/test/test_video_pos.cpp if( !writer.isOpened() ) isOpened 106 modules/videoio/test/test_video_pos.cpp if (!cap.isOpened()) isOpened 70 modules/videostab/src/frame_source.cpp if (!vc.isOpened()) isOpened 251 modules/viz/src/vizcore.cpp if (!fs.isOpened()) isOpened 163 samples/cpp/3calibration.cpp if( !fs.isOpened() ) isOpened 313 samples/cpp/autofocus.cpp if (!cap.isOpened()) isOpened 351 samples/cpp/autofocus.cpp if (!videoWriter.isOpened()) isOpened 49 samples/cpp/bgfg_segm.cpp if( !cap.isOpened() ) isOpened 255 samples/cpp/calibration.cpp if( !fs.isOpened() ) isOpened 426 samples/cpp/calibration.cpp if( !capture.isOpened() && imageList.empty() ) isOpened 432 samples/cpp/calibration.cpp if( capture.isOpened() ) isOpened 442 samples/cpp/calibration.cpp if( capture.isOpened() ) isOpened 491 samples/cpp/calibration.cpp (!capture.isOpened() || clock() - prevTimestamp > delay*1e-3*CLOCKS_PER_SEC) ) isOpened 495 samples/cpp/calibration.cpp blink = capture.isOpened(); isOpened 528 samples/cpp/calibration.cpp int key = 0xff & waitKey(capture.isOpened() ? 50 : 500); isOpened 536 samples/cpp/calibration.cpp if( capture.isOpened() && key == 'g' ) isOpened 551 samples/cpp/calibration.cpp if( !capture.isOpened() ) isOpened 556 samples/cpp/calibration.cpp if( !capture.isOpened() && showUndistorted ) isOpened 86 samples/cpp/camshiftdemo.cpp if( !cap.isOpened() ) isOpened 48 samples/cpp/dbt_face_detection.cpp if (!VideoStream.isOpened()) isOpened 18 samples/cpp/example_cmake/example.cpp if(capture.isOpened()) isOpened 37 samples/cpp/fback.cpp if( !cap.isOpened() ) isOpened 110 samples/cpp/filestorage.cpp if (!fs.isOpened()) isOpened 30 samples/cpp/image_sequence.cpp if (!sequence.isOpened()) isOpened 293 samples/cpp/intelperc_capture.cpp if (!capture.isOpened()) isOpened 36 samples/cpp/laplace.cpp if( cap.isOpened() ) isOpened 50 samples/cpp/laplace.cpp if( !cap.isOpened() ) isOpened 55 samples/cpp/lkdemo.cpp if( !cap.isOpened() ) isOpened 197 samples/cpp/openni_capture.cpp if( !capture.isOpened() ) isOpened 203 samples/cpp/openni_capture.cpp if( !capture.isOpened() ) isOpened 73 samples/cpp/segment_objects.cpp if( !cap.isOpened() ) isOpened 314 samples/cpp/select3dobj.cpp if( !fs.isOpened() ) isOpened 344 samples/cpp/select3dobj.cpp if( !fs.isOpened() ) isOpened 373 samples/cpp/select3dobj.cpp if( !fs.isOpened() ) isOpened 484 samples/cpp/select3dobj.cpp if( !capture.isOpened() && imageList.empty() ) isOpened 37 samples/cpp/starter_imagelist.cpp if (!fs.isOpened()) isOpened 81 samples/cpp/starter_video.cpp if (!capture.isOpened()) //if this fails, try to open as a video camera, through the use of an integer param isOpened 83 samples/cpp/starter_video.cpp if (!capture.isOpened()) { isOpened 216 samples/cpp/stereo_calib.cpp if( fs.isOpened() ) isOpened 234 samples/cpp/stereo_calib.cpp if( fs.isOpened() ) isOpened 335 samples/cpp/stereo_calib.cpp if( !fs.isOpened() ) isOpened 192 samples/cpp/stereo_match.cpp if(!fs.isOpened()) isOpened 208 samples/cpp/stereo_match.cpp if(!fs.isOpened()) isOpened 374 samples/cpp/train_HOG.cpp if( !video.isOpened() ) isOpened 52 samples/cpp/tutorial_code/HighGUI/video-input-psnr-ssim/video-input-psnr-ssim.cpp if (!captRefrnc.isOpened()) isOpened 58 samples/cpp/tutorial_code/HighGUI/video-input-psnr-ssim/video-input-psnr-ssim.cpp if (!captUndTst.isOpened()) isOpened 36 samples/cpp/tutorial_code/HighGUI/video-write/video-write.cpp if (!inputVideo.isOpened()) isOpened 58 samples/cpp/tutorial_code/HighGUI/video-write/video-write.cpp if (!outputVideo.isOpened()) isOpened 120 samples/cpp/tutorial_code/calib3d/camera_calibration/camera_calibration.cpp if (inputType != IMAGE_LIST && !inputCapture.isOpened()) isOpened 150 samples/cpp/tutorial_code/calib3d/camera_calibration/camera_calibration.cpp if( inputCapture.isOpened() ) isOpened 166 samples/cpp/tutorial_code/calib3d/camera_calibration/camera_calibration.cpp if( !fs.isOpened() ) isOpened 232 samples/cpp/tutorial_code/calib3d/camera_calibration/camera_calibration.cpp if (!fs.isOpened()) isOpened 320 samples/cpp/tutorial_code/calib3d/camera_calibration/camera_calibration.cpp (!s.inputCapture.isOpened() || clock() - prevTimestamp > s.delay*1e-3*CLOCKS_PER_SEC) ) isOpened 324 samples/cpp/tutorial_code/calib3d/camera_calibration/camera_calibration.cpp blinkOutput = s.inputCapture.isOpened(); isOpened 363 samples/cpp/tutorial_code/calib3d/camera_calibration/camera_calibration.cpp char key = (char)waitKey(s.inputCapture.isOpened() ? 50 : s.delay); isOpened 371 samples/cpp/tutorial_code/calib3d/camera_calibration/camera_calibration.cpp if( s.inputCapture.isOpened() && key == 'g' ) isOpened 162 samples/cpp/tutorial_code/calib3d/real_time_pose_estimation/src/main_detection.cpp if(!cap.isOpened()) // check if we succeeded isOpened 108 samples/cpp/tutorial_code/core/file_input_output/file_input_output.cpp if (!fs.isOpened()) isOpened 77 samples/cpp/tutorial_code/core/ippasync/ippasync_sample.cpp if( !cap.isOpened() ) isOpened 122 samples/cpp/tutorial_code/features2D/AKAZE_tracking/planar_tracking.cpp if(!video_in.isOpened()) { isOpened 126 samples/cpp/tutorial_code/features2D/AKAZE_tracking/planar_tracking.cpp if(!video_out.isOpened()) { isOpened 34 samples/cpp/tutorial_code/objectDetection/objectDetection.cpp if ( ! capture.isOpened() ) { printf("--(!)Error opening video capture\n"); return -1; } isOpened 40 samples/cpp/tutorial_code/objectDetection/objectDetection2.cpp if ( ! capture.isOpened() ) { printf("--(!)Error opening video capture\n"); return -1; } isOpened 95 samples/cpp/tutorial_code/video/bg_sub.cpp if(!capture.isOpened()){ isOpened 125 samples/cpp/ufacedetect.cpp if( capture.isOpened() ) isOpened 51 samples/cpp/videostab.cpp if (!writer.isOpened()) isOpened 160 samples/directx/d3dsample.hpp if (!cap.isOpened()) isOpened 63 samples/gpu/bgfg_segm.cpp if (!cap.isOpened()) isOpened 195 samples/gpu/cascadeclassifier.cpp CV_Assert(capture.isOpened()); isOpened 200 samples/gpu/cascadeclassifier.cpp CV_Assert(capture.isOpened()); isOpened 374 samples/gpu/cascadeclassifier_nvidia_api.cpp if (capture.isOpened()) isOpened 272 samples/gpu/hog.cpp if (!vc.isOpened()) isOpened 279 samples/gpu/hog.cpp if (!vc.isOpened()) isOpened 355 samples/gpu/hog.cpp if (!video_writer.isOpened()) isOpened 359 samples/gpu/hog.cpp if (!video_writer.isOpened()) isOpened 1197 samples/gpu/performance/tests.cpp if (!cap.isOpened()) throw runtime_error("can't open ../data/768x576.avi"); isOpened 1250 samples/gpu/performance/tests.cpp if (!cap.isOpened()) throw runtime_error("can't open ../data/768x576.avi"); isOpened 388 samples/gpu/stereo_multi.cpp if (!leftVideo.isOpened()) isOpened 394 samples/gpu/stereo_multi.cpp if (!rightVideo.isOpened()) isOpened 156 samples/gpu/super_resolution.cpp if (!writer.isOpened()) isOpened 28 samples/gpu/video_writer.cpp if (!reader.isOpened()) isOpened 58 samples/gpu/video_writer.cpp if (!writer.isOpened()) isOpened 52 samples/tapi/bgfg_segm.cpp if (!cap.isOpened()) isOpened 83 samples/tapi/camshift.cpp if (!cap.isOpened()) isOpened 85 samples/tapi/clahe.cpp if(capture.isOpened()) isOpened 168 samples/tapi/hog.cpp if (!vc.isOpened()) isOpened 175 samples/tapi/hog.cpp if (!vc.isOpened()) isOpened 245 samples/tapi/hog.cpp if (!video_writer.isOpened()) isOpened 249 samples/tapi/hog.cpp if (!video_writer.isOpened()) isOpened 132 samples/tapi/pyrlk_optical_flow.cpp if(!capture.isOpened()) isOpened 135 samples/tapi/tvl1_optical_flow.cpp if(!capture.isOpened())