Thresholding: let's disable the std-dev weighting by default

Signed-off-by: Nicola Vigano <nicola.vigano@esrf.fr>

4_grains/GtThreshold.m

@@ -390,7 +390,7 @@ classdef GtThreshold < handle
             end
 
             if (~isfield(thr_params, 'weight_by_stddev'))
-                thr_params.weight_by_stddev = true;
+                thr_params.weight_by_stddev = false;
             end
         end
 

5_reconstruction/gtRecDefaultParameters.m

@@ -22,5 +22,5 @@ function par_rec = gtRecDefaultParameters(varargin)
     par_rec.thresholding = struct( ...
         'percentile', 20, 'do_morph_recon', true, ...
         'percent_of_peak', 2.5, 'num_iter', 0, 'iter_factor', 1, ...
-        'weight_by_stddev', true);
+        'weight_by_stddev', false);
 end