Hi,
After using the NDVI calculator I would like to get the image indices that vary between -1 and 1. How can I do this in FME?
Thank´s
+23- Contributor
You have to be more specific. What type of feature do you need to extract.
One way would be to use two RasterCellValueReplacers one for values <-1 and one for values >1 and replace them by some value that you set as NoData via RasterBandNodataSetter. -32768 is one of the commonly used values as it is the lowest 16bit signed integer.
You can then use RasterExtentsCoercer to get Data Extents in a polygon or just style the raster accordingly in your software of choice.
Or use RasterStatisticsCalculator to extract some other data that you might need.
Please specify your desired end result.
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