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我在室内打开一个闪烁的红灯，灯壳是灰色半透明，灯体两边的红色怎么软件或者硬件去掉？人眼看不到摄像头却能拍到 ，是调曝光时间还是什么？我看别人是能达到那种效果的，就连地上的反光都能去掉，难道使换了镜头？
你需要提供一下实际图片。