由频域函数、亮度函数和对比度函数计算得到结构相似度。
The structural similarity is calculated using the frequency domain, the brightness, and the contrast functions.
导出了使用灵敏度时间控制(STC)时这类断层像的亮度函数的数学解析式。
An expression is derived for the brightness function of the echograms, which are based on the use of STC (Sensitivity Time Control).
星星(点光源)的亮度只是望远镜孔径的函数-孔径越大,图像越亮。
The brightness of stars (point sources) is only a function of telescope aperture-the larger the aperture, the brighter the images.
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