background brightness

inhibiting background and maintaining high brightness area are implemented by using top-hat operator morphological filtering.

利用Top-Hat算子形态滤波，抑制背景并保留高亮区；

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from the perspective of environmental psychology, this thesis firstly simulated dynamic light environment in the laboratory and researched influences of combination and intersection of three factors ( namely background brightness, distance/ solid angle and stimulating speed) on visual perception.

本文首次在实验室内，从环境心理学角度出发，模拟动态光环境下，背景亮度、距离/立体角和刺激速度三因素的组合和交叉变化对人的视觉感知的影响。

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through regression analysis of the massive measured data, the reaction time and the background brightness function expression has been fitted under the different experimental condition, thus obtains the golden halogen photosource vision effect to be higher than the sodium lamp photosource the conclusion.

通过对大量实测数据的回归分析，拟合出不同实验条件下反应时间与背景亮度的函数表达式，从而得出金卤光源视觉功效高于钠灯光源的结论。

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I keep Wi-Fi on in the background and screen brightness at 75% while playing video.

而我是一直开着无线网络并把亮度调到75%来播放视频的。

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for the first method, the uneven background brightness distributing was compensated by collecting background brightness of ferrography image.

第一种方式是：在没有铁磨粒情况下采集背景亮度变化，通过数字处理得到背景亮度变化的差值，然后将亮度补偿到铁谱图上。

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however, the result of face detection is usually affected by the background, brightness changing or head posture of the image and so on, which makes the process of detection more complicated.

由于受图像背景、亮度变化及人的头部姿势等因素的影响，使得人脸检测变得更为复杂。

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the ring sight presents a set of concentric rings when it is illuminated by the target and the background. brightness of the rings is in proportion to that of the target and the background.

在目标光和背景光的照射下，呈现出一组同心圆环，其亮度与目标和背景的亮度成正比。

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based on the mortran software, a corrected method to consummate the all-sky background brightness is given.

提出了基于MORTRAN软件的修正完善方法，建立了全天空背景亮度数据；

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influence of background brightness and dazzle on collision avoidance of night navigation ships

背景亮度及眩光对夜航船舶避碰的影响

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the mean standard variance of brightness slope of adjacent image blocks is used as the measurement of blocking artifacts. meanwhile, the mask to blocking artifacts of the background activity and brightness is also taken into consideration.

将相邻图像块的亮度斜率均方差作为块效应的度量，同时融合背景活动性及亮度对块效应的掩盖影响。

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results show that a two component photon counting histogram can effectively remove the effects due to background autofluorescence from low brightness and high concentration components and uniform noise.

结果表明，利用双组分光子计数统计方法，可以有效去除低亮度、高浓度背景组分自荧光和均匀分布系统噪声产生的影响。

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