luminosity function

• 1. 亮度函数: luminosity function | luminance function
• 2. 芒塞尔系亮度函数: Munsell value function
• 3. 行星状星云亮度函数: Planetary nebula luminosity function

• 1.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.
  dict.yoduao.com
• 2.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).
  dict.yoduao.com
• 3.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.
  dict.yoduao.com

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