扫描结果显示在下面，表明图像仅含有亮度斜坡和一个“高原”区。
The scan, shown below the image, indicates that the image contains only intensity gradients and a 'plateau' area.
在图中底部的第四根线是特意画上的，显示图像亮度的扫描点。
A fourth line has been intentionally drawn across near the bottom of the figure to show where a scan of image brightness was made.
为了便于丰控系统控制扫描转换器的输出图像的亮度、对比度和色饱和度，扫描转换器提供了RS-422和RS-232两种通信方式。
The scanning converter supplies two communicative ways:RS-422 and RS-232. Through these ways the main controlling system controls the brightness, contrast, saturation of output pictures.
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