Traditional image enhancement algorithm enhances the contrast grade and noise of image at the same time. So, noise reduction is needed.

传统图像增强算法在增强对比度的同时，也很大地提升图像噪声，需要对图像进行降噪处理。

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The contrast shows that the top grade engine oils are being developed toward fuel economic and environmental protection.

通过对比可以看出，高档内燃机油越来越注重节能以及环保的要求。

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And I recall ensuring all my limbs were safely inside the moving vehicle, in contrast to her friend in grammar school who learned to write with her left hand after that grade eight field trip.

我记得那时她只是要使我安全地呆在飞奔的汽车中，不要把手脚伸出去。这和她的语法学校的一个朋友形成了对比，她的那个朋友在一次八年级的实地考察旅行之后学会了用左手写字。

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James Blythe, now a student at Oxford, was given a D grade for coursework in his history A-level last year - in contrast to much higher marks for other parts of the exam.

BBC: A-level marking 'grossly unjust'

The TD 40 family features Professional Grade IPS panels with 1920x1080 full HD resolution and 20, 000, 000:1 Dynamic Contrast Ratio for stunning picture and color performance.

ENGADGET: ViewSonic outs three Windows 8-certified touchscreen displays