大气校正图像辐射校正和大气校正的步骤.ppt

大气校正图像辐射校正和大气校正的步骤.ppt

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Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. 图像辐射校正和大气校正的步骤 图像辐射校正和大气校正的步骤 2. 辐亮度计算:Basic Tools? Preprocessing? Calibration Utilities ? Landsat Calibration * 选入文件注意是*6的那个MTL.txt文件,这个文件是初始下载的时候就有的 图像辐射校正和大气校正的步骤 2. 辐亮度计算:Basic Tools? Preprocessing? Calibration Utilities ? Landsat Calibration * 一般会自动读入数据的类型和时间,选择辐射亮度,保存文件即可 图像辐射校正和大气校正的步骤 3. 研究区裁剪:在大气校正之前将辐亮度图像裁剪出所需要的区域,一方面减少计算时间,另一方面可以更好的确定大气校正时的参数 * 图像辐射校正和大气校正的步骤 4. BIL或BIP格式转换:将裁剪完的研究区Radiance图像转换为flaash需要的格式 * 图像辐射校正和大气校正的步骤 5. 大气校正FLAASH的设置: * 图像辐射校正和大气校正的步骤 5. 大气校正FLAASH的设置: * 图像辐射校正和大气校正的步骤 6. 最终结果检查——光谱曲线: * Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 2012. China, Nanjing University. All rights reserved. Copyright ? 20

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