摘要
"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(normlized difference vegetation index,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。
In consideration of the absence of blue band of＂ZY -1 ＂02C satellite, this paper selects a suitable linear band calculation model to achieve its true color synthesis and further enhances the true color of vegetation display of the image through a method of weighting by green band and near - infrared band on the basis of present simulating true color technology. Experimental results show that reconstructing blue band in the way of weighting method model produces the best display effect of natural color; moreover, the green band and near - infrared band are weighted under the limit of NDVI, which not only enhances the display effect of vegetation but avoids the color variation of non - vegetation areas such as buildings, water bodies and bare land.
出处
《国土资源遥感》
CSCD
北大核心
2013年第4期33-39,共7页
Remote Sensing for Land & Resources
基金
国土资源部公益性行业科研专项"耕地等级变化野外监测技术集成与应用示范项目"(编号:201011006-4
201011006-5)
