擅长:python、mysql、java
<p>有几个问题。要读入图像,必须用引号括起路径。另一个问题是程序在显示图像后立即关闭。这就是为什么图像没有显示出来。您需要添加<a href="https://docs.opencv.org/4.1.0/d7/dfc/group__highgui.html#ga453d42fe4cb60e5723281a89973ee563" rel="nofollow noreferrer">^{<cd1>}</a>。从文件中</p>
<blockquote>
<p>Its argument is the time in milliseconds. The function waits for specified milliseconds for any keyboard event. If you press any key in that time, the program continues. If 0 is passed, it waits indefinitely for a key stroke.</p>
</blockquote>
<p>所以在您的例子中,要无限期地显示图像,只需传入<code>0</code>。在</p>
<pre><code>import cv2
img = cv2.imread("images/aiims.png")
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
cv2.imshow('Original Image', img)
cv2.imshow('Gray Image', gray)
cv2.waitKey(0)
</code></pre>
<p>你也可以像这样直接在灰度中阅读</p>
^{pr2}$