There exists complementarity between different images of one scene. A better image can be obtained by fusing these images in gradient domain.

针对同一场景不同图像之间可存在互补优缺点的特点，提出了采用梯度域融合的方法改善图像视觉效果的增强方法。

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The officers look at the scene of the event they were called to as their domain, their turf, their territory, where some order has been disturbed and they were called to restore it.

CNN: Commentary: Obama's rush to judgment on police