Basically, it is the ability to use your camera and lenses to control the relationship between the background and foreground of your pictures.

基本上讲，就是用你的相机和镜头去控制照片中背景和前景关系的能力。

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But because we have been using various sized brushes, the objects in the background and extreme foreground are blurred out-just like the image produced by a camera.

但是因为我们使用了不同大小的画笔，因此背景和极端的前景就都是模糊的——就象相机产生的图像一样。

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The Virtual studio System technique can make use of computer creating dummy properties and scenes and it compose those stuffs and foreground signals come from camera in studios.

虚拟演播室技术是利用计算机虚拟生成演播室内的道具和布景并将其与摄像机输出的前景信号合成。

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With the flash on, the camera automatically merges an image of the subject illuminated with the flash in the foreground with a separate image of the background nightscape, to produce a single, clear night photo.

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In the foreground, sitting on a hill overlooking the scene, is a couple, the man turned to the camera with an angry scowl on his face.

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