Infrared images for warship targets in sky -sea background have some characteristics, such as the low target-to-background contrast, great noise and so on.

海天背景下舰船目标红外图像的目标背景对比度低，噪声大。

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How to improve image is always a difficult problem. Generally, the target background of image has some characteristics, such as the low target-to-background contrast, great noise and so on.

如何有效地增强图像是图像分析中的一个难点，通常，图像的目标背景对比度低，噪声大。

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You might have sidebars throughout your site that use a cyan background, and you want to have your links contrast well with the sidebar background.

站点上可能到处都有使用青色背景的边栏，因此希望其中的链接能够在边栏背景上看得清楚。

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The rings must never be shown in Olympic yellow on a white background, because yellow does not contrast enough against a white background.

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In contrast, gainst a background of inflated expectations, Samsung needs five big wins today, five headlines that will draw people into the showrooms.

FORBES: Tim Cook Will Sigh With Relief Following the S4 Launch Today

Beyond the sleek design and processing power, VIZIO continues to leverage its HDTV background with brilliant picture quality, high contrast and wider viewing angles, a staple of the Touch PCs.

ENGADGET: Vizio brings pricing and release information to spring line of laptops and desktops