擅长:python、mysql、java
<p>这将把<code>grayImg</code>中<code>grayList</code>的所有像素更改为255。想不出比这更简单的方法了</p>
<pre><code>grayImg[np.isin(grayImg, grayList)] = 255
</code></pre>
<pre><code>array([[255, 87, 52, ..., 245, 2, 236],
[ 20, 255, 255, ..., 33, 205, 15],
[255, 81, 255, ..., 17, 255, 255],
...,
[236, 255, 255, ..., 217, 15, 255],
[255, 221, 39, ..., 88, 240, 46],
[ 17, 219, 224, ..., 255, 255, 204]])
</code></pre>