由于双边滤波的方法可以使滤波器的权系数随着图像的亮度变化而改变，所以在滤波过程中能达到自适应滤波的目的。
Since bilateral filtering method can make the weight coefficient of filter vary with image brightness, so the adaptive filtering effect can be attained during the filtering process.
本文通过进行人眼阈限亮度对比实验，确定了可见度计算模型中的重要系数K。
This paper develops the threshold brightness contrast experiments of human eyes, and determines the important factor K in the visibility calculation models.
另外因为嵌入到亮度类dct的交流系数中，所以可在保证视频后果不失真的前提下，使水印具有很强的健壮性。
As the brightness of the embedded category exchange DCT coefficients, and so we can ensure video effects without really premise, so that the watermark is very robust.
根据JPEG亮度量化表来确定中频系数嵌入强度的比例关系。
According to the JPEG brightness table, the proportion of embedding strength of middle frequency coefficients is confirmed.
本文建议了一种天顶亮度转换系数，它与室外无遮挡水平面上的天空散射光照度相乘，就能获得该天空类型的天顶亮度值。
This paper suggests a zenith luminance converting factor. By means of multiplying outdoor horizontal sky illuminance by this factor, the value of zenith luminance of the sky can be obtained.
另外因为把水印嵌入到亮度dct的交流系数中，可在保证视频后果不失真的前提下，使水印具有很强的健壮性。
In addition, the watermark has strong robust when the video frequency effect is not dropped, because the watermark is embedded in luminance AC domain.
这个辐亮度与卫星通道的计数值比较得到该通道绝对定标系数。
At last the apparent radiance of sensor spectral channels are compared to the digital count of satellite's output to give the calibration coefficient.
根据该仪器测量获得的下行辐照度和上行辐亮度，我们可以计算海水的漫衰减系数、遥感反射率、离水辐亮度等多种海洋光学参数。
Using this device, we can measure many oceanic optical parameters such as diffuse attenuation coefficient, remote-sensing reflectance, water-leaving radiance and so on.
根据该仪器测量获得的下行辐照度和上行辐亮度，我们可以计算海水的漫衰减系数、遥感反射率、离水辐亮度等多种海洋光学参数。
Using this device, we can measure many oceanic optical parameters such as diffuse attenuation coefficient, remote-sensing reflectance, water-leaving radiance and so on.
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