Can We Change Default Re-Sampling For Rasters?

JoelSholtes — Thu, 05 Dec 2019 18:49:40 GMT

Team,

The default or first option for any raster re-sampling / re-projection geoprocessing tools is "nearest neighbor". This re-sampling algorithm is explicitly for integer or categorical data. The other two options are for continuous data and represent interpolation schemes.

Because "nearest neighbor" is the default re-sampling algorithm, when re-sampling or re-projecting a continuous data raster, numerical artifacts are introduced.

I work with continuous data almost explicitly (digital elevation models, hydrologic/snow data, etc). I also teach undergrads GIS. I have been teaching them about the difference in these re-sampling algorithms. However, having to choose an appropriate interpolation scheme for re-sampling continuous data (bilinear or cubic), but it is often a step that is neglected.

Can ESRI change the default re-sampling algorithm to either bilinear or cubic? OR can they add some sort of warning / prompt / flag on the geoprocessing tools that advises the user as to the appropriate sampling scheme?

Let me know what you think!

Joel Sholtes

Colorado Mesa University

topic Can We Change Default Re-Sampling For Rasters? in Elevation Data Questions

Can We Change Default Re-Sampling For Rasters?