Modify No Value and Scale function

[osamasajid123]

Hi,

I am using MODIStsp but I need more clarification of how does the 'Modify No Value' and Scaling function works?
Is scaling just multiplying all bands with 0.0001? For example I was computing NDVI = (NIR-RED)/(NIR+RED), the scaling should not affect the result if it was just multiplying the bands with a constant number. Right?

Osama

[lbusett]

@osamasajid123

Concerning Indexes, "applying scale and offset" means that the output will be saved as a floating point number, In the case of NDVI, values would be between -1 and +1. If you do NOT apply scale and offset, output will be saved as integers, obtained multiplying the index by 10000 (so, for NDVI, you will get values between -10000 and 10000).

Is this clear enough?

BTW: If you are currently getting some "strange" values in the indexes, please have a look at this issue, for which a fix will be available soon:

#163

[lbusett]

Closing due to lack of activity. Feel free to reopen if needed.