[postgis-users] NDVI Calculation from two bands within one Raster

[JamesH]

Thanks, that has worked and can visualise through OpenJump.

The Raster it produces (below), has only values of zero or one in its
attributes. 
I'm assuming in the calculation its not keeping the values as Floats but its
converting it to integer? Must be rounding them to either zero or one.

Is there a way to solve this i.e. keep the pixels as floating integers?

http://postgis.17.n6.nabble.com/file/n4832776/ndvi.jpg 

Regards,
James

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GIS Undergraduate
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