From the engineering practice, the theory, design and application of image enhancement circuit are discussed.

从工程实际出发，讨论了图像增强电路的理论、设计与应用。

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Objective There are many image enhance methods in image engineering, for example contrast enhancement and dynamic range compression and so on.

目的在图像工程中，图像增强方法有多种，如增强对比度和动态范围压缩等等。

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Four professional bodies - the Academy of Medical Sciences, the British Academy, the Royal Academy of Engineering and the Royal Society - say that while human enhancement technologies might improve our performance and aid society, their use raise serious ethical, philosophical, regulatory and economic issues.

BBC: Concern over 'souped up' human race