I want to convert each date of NDVI value of area in csv format any idea please ?

Hi @bariavijit250, You could use a RasterCellCoercer in point mode and let the band values extract as Z-values. Then use a CoordinateExtractor to get x,y,z values and write them out using a csv writer.

Some points to consider:

• Sentinel produces vaste amounts of data, so you might want to put a RasterResampler in front of the RasterCellCoercer to (temporarily) reduce the size of it for experimenting reasons (use percentage mode, something like 1%)
• Depending on the type of raster (bands) you can use a RasterInterpretationCoercer to create a numeric (real64 or so) raster in stead of an RGB three band raster.
• An RGB raster might also contain a palette, you probably want to get rid of that using a RasterPaletteResolver
• Or remove the B4 and B8 bands to keep just the band holding the NDVI values if you were combining the B4/B8 bands and then used the RasterExpressionEvaluator to generate the NDVI band.
• If there is no geolocation in the raster, you will probably need to use an AffineWarper or a Scaler/Offsetter combination to get it onto the right place on Earth.
• If you use some exotic Excel that reads decimal points as thousand separator, like I do, you could replace them using a StringReplacer on the x,y,z coordinates.
• I'm not sure in the end this will work.

Good luck and have fun, this is nice stuff.