cv2.imwrite保存灰度图

在使用OpenCV的cv2.imwrite函数保存灰度图时，可以像下面这样使用：
cv2.imwrite("路径/文件名.jpg", 灰度图像)。
其中，"路径/文件名.jpg"是保存图像的路径和文件名，灰度图像是通过cv2.cvtColor函数将彩色图像转换为灰度图像后得到的。这样就可以将灰度图像保存在指定的路径下了。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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