image brightness meaning in English

图像亮度
影象亮度

In the method dff ( depth from focus ) , aiming at the characteristic of the images , we proposed that wiener filter and image brightness normalization can be apply as preprocessing tools
首次提出用维纳滤波和图像亮度归一化对图像做预处理，使对焦深度法的评价曲线形状得到明显的改善。
In this paper , wuhan was investigated as a example . a relation model was built between ground temperature and image brightness of landsat7 tm band 6 , and a map of ground heat field was made by ihs enhance method . results show that the heat field of wuhan presents regular distribution
本文利用武汉市地区的landsat7tm图像，对于热红外波段遥感图像灰度值和地面温度之间的关系进行了定量的解译，并且采用ihs图像复合增强的方法得到了武汉市地面热场分布图，取得了很好的模拟效果。