python - 我如何才能使OpenCV在Raspberry Pi 4（Raspbian Buster）上完全发挥作用？

我已经尝试了很多天，用Raspbian Buster在我的Raspberry Pi 4上安装OpenCV，但是我做不到。在大多数情况下，安装都能正常工作，但是在导入或使用cv2方法（例如cv2.imshow（））时，会出现错误（请参见下文）。

是有人让OpenCV在Raspberry Pi 4上工作还是对如何使其工作有想法？预先感谢您的帮助 ：-）！

用pip安装OpenCV后出现错误：

pip install opencv-python
pip install opencv-contrib-python

python
>>> import cv2

ImportError: libImath-2_2.so.12: cannot open shared object file: no such file or directory

我无法安装此库“ libImath-2_2.so.12”。错误仍然存​​在。

使用conda安装OpenCV后出现错误：

conda install -c conda-forge opencv
conda install -c conda-forge opencv=4.1.0
conda install -c menpo opencv

python
>>> import cv2
>>> img = cv2.imread("image.png", 0)
>>> cv2.imshow("Frame", img)

OpenCV Error: Unspecified error (The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script) in cvShowImage, file /home/jhelmus/conda/conda-bld/opencv_1512174356192/work/modules/highgui/src/window.cpp, line 605
Traceback (most recent call last):
  File "detect_video.py", line 113, in <module>
    cv2.imshow("Frame", img_main)
cv2.error: /home/jhelmus/conda/conda-bld/opencv_1512174356192/work/modules/highgui/src/window.cpp:605: error: (-2) The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function cvShowImage

I checked and the libraries libgtk2.0-dev and pkg-config were installed already. I don't know how to "configure the script in function cvShowImage" in a way that would make it work.

Error after installing OpenCV by compiling it

I went through the compilation processes described in these two guides. These guides worked on my Raspberry Pi 3b, but not on my Raspberry Pi 4:

1. https://www.pyimagesearch.com/2018/09/26/install-opencv-4-on-your-raspberry-pi/
2. https://www.learnopencv.com/install-opencv-4-on-raspberry-pi/

I was able to finish the compilation with make, sudo make install etc. Afterwards though i now still have to link the openCV installation to my Python bindings. With the cmake command i set the following paths:

• Python 3 Interpreter: /home/pi/miniconda3/bin/python3 (ver 3.5.6)
• Python 3 Packages: lib/python3.5/dist-packages
• Python (for build): /usr/bin/python2.7

现在如何访问OpenCV，如何将其链接到Python，以便可以将其导入为cv2？

预先感谢您的帮助 ：-）！

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