picture-shading signal

例句：

1. 1. The image processing system uses a picture-shading signal to enhance the quality of the images.
   该图像处理系统使用一种图片遮罩信号来提高图像的质量。
2. 2.During the night, the camera used a picture-shading signal to capture the moon's reflection on the water surface.
   在夜晚，摄像机使用了图片遮罩信号来捕捉水面上月亮的倒影。
3. 3.The new software application provides a picture-shading signal that can be used to adjust the brightness and contrast of an image.
   新的软件应用程序提供了一个图片遮罩信号，可以用来调整图像的亮度和对比度。