An image pre-processing techniques based on Wiener filter and normalization of image brightness is proposed for weaken the influence of periodic noise and brightness variation.
提出维纳滤波与亮度归一化相结合的图像预处理技术，去除固定模式噪声和亮度变化的影响。
The variation of brightness and chromaticity of output image with modulation depth in phase-modulated colour encoding image is investigated.
本文讨论了位相调制彩色编码输出图象的色度、亮度随调制深度变化的规律。
The variation of the polarization brightness of coronal streamer in Carrington Rotations 1591-1592 is investigated.
本文研究了卡林顿自转周1591- 1592中冕流偏振亮度的变化。
The variation of the polarization brightness of coronal streamer in Carrington Rotations 1591-1592 is investigated.
本文研究了卡林顿自转周1591- 1592中冕流偏振亮度的变化。
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