gtFigureCreateFromPicture: fixed saving to file

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

zUtil_Drawing/gtFigureCreateFromPicture.m

@@ -93,4 +93,10 @@ function [f, ax] = gtFigureCreateFromPicture(img, mask, varargin)
     end
 
     gtFigureSetSize(f, ax, conf, img_size);
+
+    drawnow();
+
+    if (~isempty(conf.filename))
+        gtFigureSaveToFile(f, conf.filename);
+    end
 end