擅长:python、mysql、java
<p>你从这里学习了教程:<a href="http://opencv-python-tutroals.readthedocs.io/en/latest/py_tutorials/py_gui/py_video_display/py_video_display.html#playing-video-from-file" rel="nofollow noreferrer">Playing Video from file</a></p>
<p>这个问题解决了您的错误:<a href="https://stackoverflow.com/questions/30506126/open-cv-error-215-scn-3-scn-4-in-function-cvtcolor">open cv error: (-215) scn == 3 || scn == 4 in function cvtColor</a></p>
<p>可能有两件事:</p>
<ul>
<li>确保找到视频!</li>
<li>尝试使用<code>cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)</code></li>
</ul>