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Last Post 22 Aug 2005 01:20 AM by  anon
Maximum NDVI composite
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anon



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22 Aug 2005 01:20 AM
    Hi, I'm building composite images using ENVI Band Math. The average composite was easy to do but now I'm trying to figure out a way to create a Maximum NDVI composite, and it seems to be too complicated to do with Band Math. Or is it? Has anyone found out a way to create maximum composites in ENVI? Jukka

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    22 Aug 2005 01:20 AM
    Hi Jukka, I have exactly the some problem now. Did you find out a way to create the maximum composite within ENVI? Best regards Mikkel Tamstorf

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    22 Aug 2005 01:20 AM
    I thought u want to max ndvi from 7 ndvi layers.You can figure it out in ERDAS as well as ENVI.Just you go to model maker in ERDAS and go to max command.Use this command MAX ( $n1_ndvi161_00 , $n2_ndvi169_00 ) like this u enter all the layers.it will give one output which has max ndvi from all the images in pixel basis. Also u can use this command in ENVI band math. If u want one ndvi layer which has max ndvi,u need to modify the command in band math.Good luck. Try this.If u need further help u can mail me(India)-bikash_rp@rediffmail.com
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