[英]How do I change my image background to red
我有一幅具有灰色ROI和黑色背景的图像,该图像是从imfreehand函数获得的。 我想将黑色背景更改为红色。 以下是图像的链接。
有两种方法可以做到这一点。
我敢肯定还有其他人,但是这是我想到的头两个。
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