brightness scale

Since our eyes judge brightness on a logarithmic scale, reducing the Sun's brightness to a third of its normal value will be seen as a slight dimming; certainly not "blotting it out."

由于我们的眼睛是以对数形式衡量光的亮度，因而把阳光亮度减弱到三分之一在肉眼看来只是有一点点暗淡，完全达不到“完全遮蔽”的效果。

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In scene matching, false matching occurs due to brightness, contrast, scale, noise, and rotation difference between real-time target image and standard target image.

景象匹配中，实时目标图与基准目标图之间的亮度、对比度、噪声水平以及旋转等差异是造成误匹配的重要原因。

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Deferring to historical custom, astronomers, measure the apparent brightness of stars through the magnitude scale, a very confusing way.

按照历史习惯，天文学家用星等标这种容易使人混淆的方法来度量恒星的视亮度。

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Although the effect of correlation between NDVI and brightness temperature from the thermal infrared band of TM imagery was unobvious relatively on urban scale, on built-up area scale which affected intensively by human activity, it showed a significant negative correlation.

全市尺度上NDVI与基于热红外波段计算的亮温值的相关性较差，但在受人类活动强烈影响的中心城区，考虑水体因素的影响，NDVI与亮温之间表现为显著的负相关关系。

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Measure brightness using the magnitude scale is explained.

测量亮度使用震级解释.

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