pdal translate ./exercises/analysis/ground/CSite1_orig-utm.laz ^
-o ./exercises/analysis/ground/denoised-ground-only.laz ^
outlier smrf range  ^
--filters.outlier.method="statistical" ^
--filters.outlier.mean_k=8 --filters.outlier.multiplier=3.0 ^
--filters.smrf.ignore="Classification[7:7]"  ^
--filters.range.limits="Classification[2:2]" ^
--writers.las.compression=true ^
--verbose 4