我是StackOverflow的新手,因为这是我的第一篇文章。我希望我遵守这样的规则,并且希望我不会因重复发表问题而让任何人感到沮丧。
我的问题如下。我能够编译并安装OpenCV 3.4.1。在我的Raspberry Pi 3B上。我无法解决的唯一问题是,当我测试相机时(通过OpenCV查看凸轮供纸),我得到了一个空框。很少会闪烁,并显示实际的相机提要。
我有一个截图来显示我的意思:
您还可以看到,当我制作图像时,通过使用video.py脚本并按“输入”,它确实产生了正确的图像。当我(用光标)移动框架时,它似乎比平时闪烁得多(更频繁地显示实际的相机进给)。我尝试重新安装NOOBS,重新编译和重新安装的次数超过了我记得的时间。可能是什么问题?如果我错过了共享相关信息的话,请告诉我!
非常感谢您抽出宝贵的时间! 亲切的问候,彼得
编辑:这是在终端中运行opencv_version -v时的打印输出
opencv_version -v General configuration for OpenCV 3.4.1 ===================================== Version control: unknown Platform: Timestamp: 2018-09-29T19:02:09Z Host: Linux 4.14.71-v7+ armv7l CMake: 3.7.2 CMake generator: Unix Makefiles CMake build tool: /usr/bin/make Configuration: RELEASE CPU/HW features: Baseline: requested: DETECT disabled: VFPV3 NEON C/C++: Built as dynamic libs?: YES C++11: YES C++ Compiler: /usr/bin/c++ (ver 6.3.0) C++ flags (Release): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -mfp16-format=ieee -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG C++ flags (Debug): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -mfp16-format=ieee -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG C Compiler: /usr/bin/cc C flags (Release): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -mfp16-format=ieee -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG C flags (Debug): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -mfp16-format=ieee -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG Linker flags (Release): Linker flags (Debug): ccache: NO Precompiled headers: YES Extra dependencies: dl m pthread rt 3rdparty dependencies: OpenCV modules: To be built: calib3d core dnn features2d flann highgui imgcodecs imgproc java_bindings_generator ml objdetect photo python3 python_bindings_generator shape stitching superres video videoio videostab Disabled: js python2 world Disabled by dependency: - Unavailable: cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev java ts viz Applications: examples apps Documentation: NO Non-free algorithms: NO GUI: GTK+: YES (ver 2.24.31) GThread : YES (ver 2.50.3) GtkGlExt: NO VTK support: NO Media I/O: ZLib: /usr/lib/arm-linux-gnueabihf/libz.so (ver 1.2.8) JPEG: /usr/lib/arm-linux-gnueabihf/libjpeg.so (ver ) WEBP: build (ver encoder: 0x020e) PNG: /usr/lib/arm-linux-gnueabihf/libpng.so (ver 1.6.28) TIFF: /usr/lib/arm-linux-gnueabihf/libtiff.so (ver 42 / 4.0.8) JPEG 2000: /usr/lib/arm-linux-gnueabihf/libjasper.so (ver 1.900.1) OpenEXR: build (ver 1.7.1) Video I/O: DC1394: NO FFMPEG: YES avcodec: YES (ver 57.64.101) avformat: YES (ver 57.56.101) avutil: YES (ver 55.34.101) swscale: YES (ver 4.2.100) avresample: NO GStreamer: NO libv4l/libv4l2: NO v4l/v4l2: linux/videodev2.h gPhoto2: NO Parallel framework: pthreads Trace: YES (built-in) Other third-party libraries: Lapack: NO Eigen: NO Custom HAL: YES (carotene (ver 0.0.1)) Protobuf: build (3.5.1) OpenCL: YES (no extra features) Include path: /home/pi/opencv-3.4.1/3rdparty/include/opencl/1.2 Link libraries: Dynamic load Python 3: Interpreter: /usr/bin/python3 (ver 3.5.3) Libraries: /usr/lib/arm-linux-gnueabihf/libpython3.5m.so (ver 3.5.3) numpy: /home/pi/.local/lib/python3.5/site-packages/numpy/core/include (ver 1.15.2) packages path: lib/python3.5/dist-packages Python (for build): /usr/bin/python3 Java: ant: NO JNI: NO Java wrappers: NO Java tests: NO Matlab: NO Install to: /usr/local -----------------------------------------------------------------