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应用“资源一号”02C卫星数据的模拟真彩色技术

DOI: 10.6046/gtzyyg.2013.04.06, PP. 33-39

Keywords: “资源一号”02C卫星,真彩色,线性波段运算模型

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Abstract:

"资源一号"02C卫星(以下简称02C星)数据缺少蓝光波段,为了得到该星数据的模拟真彩色合成图像,在归纳已有的9种模拟真彩色处理方法的基础上,选择了适合02C星数据蓝光波段构建的线性波段运算模型,以实现02C星数据的真彩色变换;并进一步通过绿光波段和近红外波段的加权,实现了植被区域的真彩色增强显示。实验结果表明:采用针对SPOT5数据构建蓝光波段的加权法得到的02C真彩色合成图像效果最好;基于归一化植被指数(normlizeddifferencevegetationindex,NDVI)区分植被区域和非植被区域,并对植被区域进行波段加权处理,在增强植被显示效果的同时,避免了建筑物、水体及裸地等非植被区域的颜色异常变化。

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