Re: [Qgis-user] NDVI resolution

Fri, 07 May 2021 12:59:34 -0700

You might be interpreting the gradient of NDVI values from vegetation to non-vegetation as "fuzziness".


On 5/7/21 9:27 PM, Neels Brink wrote:

Yes, the raster calculator, and the extent (resolution, nr of  pixels, everything)  of the output file matches that of the two input bands. What is interesting is that I noted that the boundaries of some man-made objects  do no show this fuzziness:

 

 

 

 

From: Nicolas Cadieux <[email protected]>
Sent: Friday, May 7, 2021 6:27 PM
To: Neels Brink <[email protected]>
Cc: [email protected]
Subject: Re: [Qgis-user] NDVI resolution

 

Hi,

Did you use the raster calculator?  If so, did you select the proper extent and rows and columns in the output files?

 

https://docs.qgis.org/3.16/en/docs/user_manual/working_with_raster/raster_analysis.html#raster-calculator



Le 7 mai 2021 à 11:56, Neels Brink <[email protected]> a écrit :



I created an NDVI in QGis from Worldview -3 bands. However, the NDVI looks ‘fuzzy’, or at lower resolution than the original bands. I tried to find a flag or setting which causes this but do not see something like it. What could be the reason for this appearance of the NDVI?

 

<image001.jpg>

 

 

<image002.jpg>

 

 

 

 

 

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