Figures: fixed copy&pasto

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

zUtil_Drawing/gtFigureCreateFromPicture.m

@@ -66,7 +66,7 @@ function [f, ax] = gtFigureCreateFromPicture(img, mask, varargin)
         clims_img = [conf.clims(1), min(conf.clims(2), max(img(:)))];
     end
 
-    img_size = [size(final_slice_RGB, 2), size(final_slice_RGB, 1)];
+    img_size = [size(img, 2), size(img, 1)];
 
     f = figure();
     ax = axes('parent', f);