阴影深度取决于光照方向和强度，以及物体和投影面的距离。
The qualities of a shadow depend on the light direction and intensity, as well as the distance between the object and the surface where the shadow is cast.
植株受光照不足的胁迫，种群大部分个体聚集分布于光照充足的林窗中；
The population habitat was restricted in the canopy gaps because of sunlight deficiency stress.
获取一类闭于光照鲁棒的、具无颜色恒常性功能的颜色描述女闭于齐部盘算机视觉体解来道长短常从要的。
To get a color descriptor that is robust to illumination and has the color constancy function is very important for the entire computer vision system.
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