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<P>哪位朋友能告诉我在erdas里面怎么把shape 转换成aoi 啊，十分感谢</P>
2007-04-08 23:21 来自版块 - 遥感应用技术(RS)
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<P>我想求出地表比辐射率：我把ＴＭ４３２波段合成假彩色图象，用水体指数提取出图象中的水体，然后把提取出来的水体和合成的假彩色图象mask，使得合成的家彩色图象上的水体值全部为１，然后把这张图做非监督分类，但是作完后，整个图象全部变黑了，请问大家应该怎么弄，我用的软件... 全文
2007-04-06 20:22 来自版块 - 遥感应用技术(RS)
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