title: "Reason: image not found" when importing opencv
body: <p>I get this error whenever I used to check if the opencv package is installed on python3 properly. I get this error regarding .so file which I had pasted during installation.</p>
  
  <pre><code>python3
  Python 3.7.3 (default, Mar 27 2019, 09:23:39) 
  [Clang 10.0.0 (clang-1000.11.45.5)] on darwin
  Type "help", "copyright", "credits" or "license" for more information.
  &gt;&gt;&gt; import cv2
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
    File "/usr/local/lib/python3.7/site-packages/cv2/__init__.py", line 89, in &lt;module&gt;
      bootstrap()
    File "/usr/local/lib/python3.7/site-packages/cv2/__init__.py", line 79, in bootstrap
      import cv2
  ImportError: dlopen(/usr/local/lib/python3.7/site-packages/cv2/python-3.7/cv2.cpython-37m-darwin.so, 2): Library not loaded: /usr/local/opt/ilmbase/lib/libImath-2_2.23.dylib
    Referenced from: /usr/local/Cellar/opencv/4.0.1/lib/libopencv_imgcodecs.4.0.dylib
    Reason: image not found
  &gt;&gt;&gt;
  </code></pre>