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针对SPOT多光谱信息缺少蓝色波段而无法得到真彩色影像,很多学者和技术人员开展了SPOT多光谱数据模拟真彩色研究。本文在对传统方法进行试验并综合分析的基础上,提出了一直改进方法。该方法是从遥感成像光谱角度,分别用前三个波段的线性组合来模拟地物蓝色波段的光谱反映,方法简单,数据量小,所用数据易于获得。实验表明,该方法模拟出的SPOT真彩色影像在视觉效果和空间信息上都有不俗的表现。
Many scholars and technicians carry out the SPOT multi-spectral data simulation true color study because the SPOT multi-spectral information lacks the blue band and can not obtain the true color image. Based on the experiment and comprehensive analysis of the traditional methods, this paper puts forward some improving methods. The method is based on the spectrum of remote sensing imaging, respectively, using the linear combination of the first three bands to simulate the spectral reflectance of the blue band. The method is simple, the data is small, and the data used is easy to obtain. Experimental results show that the SPOT true color image simulated by this method has good visual effects and spatial information.