QGIS: mean of 9 neighboring pixels calculation in shapefile attributes












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I'd like to know if is a possible from a shapefile (shape points) and an RGB raster, create in the shapefile three new columns (Mean_R, Mean_G, Mean_B) in the shapefile attributes, with the average value of the 9 neighboring pixels in the raster of each shapefile point?



My shape points represent the pixel centroid in the raster in UTM. The buffer of 0.3m solves the 9 neighboring pixels, but I do not know how to do this extraction in QGIS and create the columns in the shapepoints



Thanks in advance,










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    I'd like to know if is a possible from a shapefile (shape points) and an RGB raster, create in the shapefile three new columns (Mean_R, Mean_G, Mean_B) in the shapefile attributes, with the average value of the 9 neighboring pixels in the raster of each shapefile point?



    My shape points represent the pixel centroid in the raster in UTM. The buffer of 0.3m solves the 9 neighboring pixels, but I do not know how to do this extraction in QGIS and create the columns in the shapepoints



    Thanks in advance,










    share|improve this question

























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      I'd like to know if is a possible from a shapefile (shape points) and an RGB raster, create in the shapefile three new columns (Mean_R, Mean_G, Mean_B) in the shapefile attributes, with the average value of the 9 neighboring pixels in the raster of each shapefile point?



      My shape points represent the pixel centroid in the raster in UTM. The buffer of 0.3m solves the 9 neighboring pixels, but I do not know how to do this extraction in QGIS and create the columns in the shapepoints



      Thanks in advance,










      share|improve this question














      I'd like to know if is a possible from a shapefile (shape points) and an RGB raster, create in the shapefile three new columns (Mean_R, Mean_G, Mean_B) in the shapefile attributes, with the average value of the 9 neighboring pixels in the raster of each shapefile point?



      My shape points represent the pixel centroid in the raster in UTM. The buffer of 0.3m solves the 9 neighboring pixels, but I do not know how to do this extraction in QGIS and create the columns in the shapepoints



      Thanks in advance,







      gis qgis






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      asked Nov 21 '18 at 17:06









      LeprechaultLeprechault

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