▍1. IDL源程序
ENVI格式多光谱数据批量求平均值并保存成tif格式文件输出(Batch average of ENVI multispectral data and save it as TIF file output)
ENVI格式多光谱数据批量求平均值并保存成tif格式文件输出(Batch average of ENVI multispectral data and save it as TIF file output)
说明: ENVI格式多光谱数据批量求平均值并保存成tif格式文件输出(Batch average of ENVI multispectral data and save it as TIF file output)
说明: 读取NDVI文件 基于月数据年平均合成处理 统计年均NDVI并绘制曲线 计算年际变化率 将结果保存为ENVI标准文件(Read the NDVI file Composite processing based on monthly data and annual average The average annual NDVI was calculated and the curves were plotted Calculate the interannual rate of change Save the results as an ENVI standard file)
envi软件,调用决策树,经过实测可用。前提装envi(envi software, called the decision tree, after the measured available. Premise equipment envi)
大气校正软件MODTRAN4.3.1,MODTRAN里提供了6种差异显著且有代表性的大气模型,这些模型的温度、水汽、臭氧廓线都有明显差异。近北极冬季模型(Sub-Arctic Winter)具有最低陆表温度,中纬度冬季模型(Mid-Latitude Winter)次之;热带模型(Tropical)和中纬度夏季模型(Mid-Latitude Summer)具有最高的陆表温度。对流层顶,热带模型的温度反而是最低的,而近北极夏季模型(Sub-Arctic Summer)具有最高的温度。在这6种模型中,除陆表外的第二温度峰值高度出现在海拔50km左右,这里近北极夏季模型具有最高温度,中纬度夏季模型与之近乎相等,在这个海拔上近北极冬季模型的温度是最低的。1976美国标准模型(1976U.S. Standard)在这一系列模型中提供了一个近乎与中位数值的选择。(Atmosphere Correction Software Modtran 4.3.1, it provides six distinct and representative atmospheric models with distinct differences in temperature, water vapor, and ozone profiles.)
N-FINDR算法 端元提取 读取MNF降维后的影像数据 读取MNF降维后的影像数据( using N-FINDR end-member extraction)
说明: 利用ENVI进行图层重采样程序,c#中可以正常调用(use ENVI TO resize for layer)
说明: 利用ENVI进行图层融合代码,c#可以正常调用(use ENVI to layerStacking)
说明: 利用ENVI进行辐射校正代码,c#可以实现调用(use ENVI to CAL_CALIBRATION)
ENVI中的ROI感兴趣文件自动转换成TIFF影像数据文件(ROI To Tiff Files)
IDL计算影像均值、标准差、偏差指数、信息熵、平均梯度、光谱扭曲程度、相关系数的小程序。(average gradient, correlation coefficient, entropy, cross entropy, joint entropy, mean square error and mutual information, signal to noise ratio, peak signal to noise ratio, )
该代码采用IDL语言实现了从光谱库读取高光谱曲线,并且去除其包络。这是高光谱图像处理时一个重要的预处理技术。(The code using IDL language library to read from the spectrum of high spectral curve, and the removal of the envelope. It is time hyperspectral image processing is an important pre-processing techniques.)
说明: 基于IDL语言,使用珠海一号内蒙古地区样例数据、珠海一号贵阳省高光谱数据、Landsat5济南上下幅TM数据(用于拼接验证),实现文件基本操作、遥感图像预处理、高光谱数据处理、生态评价、最大似然法分类、K-Means分类等遥感图像初步处理功能。(Based on IDL language, using Zhuhai No.1 Inner Mongolia area sample data, Zhuhai No.1 Guiyang province hyperspectral data, landsat5 Jinan upper and lower TM data (for splicing verification), the preliminary processing functions of remote sensing image, such as file basic operation, remote sensing image preprocessing, hyperspectral data processing, ecological evaluation, maximum likelihood classification, K-means classification, etc.)